Ballistics by the inch

Comparison shopping.

Remember this graph comparing Muzzle Energy (ME)?

megraph

 

Well, a discussion elsewhere got me to thinking …

So, let’s take a look at .45 Super:

45superme

 

See what I see? Yeah, at 3″ and 4″ all the .45 Super loads are superior in terms of ME over all the other cartridges in the top graph. At 5″ the .357 Mag catches up with some of the .45 Super loads, and at 6″ it is in the center of the pack.

To really do the comparison right, I’d need to average all the .45 Super loads, then add them directly to the first graph, but that’s more time and trouble than I want to take. But my point is that of all the ‘conventional’ CCW-caliber/size guns, it looks like the .45 Super is at the top of the pile. We did formal testing of just one .460 Rowland, and it is comparable to the .45 Super at those barrel lengths (though I know from informal testing that some other loads are more powerful). You have to step up to full .44 Mag to beat either the .357 Mag or .45 Super.

Interesting.

Jim Downey

December 26, 2016 Posted by | .357 Magnum, .357 SIG, .380 ACP, .44 Magnum, .45 ACP, .45 Super, .460 Rowland, 10mm, 9mm Luger (9x19), Data, Discussion. | , , , , , , , , , , , , , , , , , , , , | Leave a comment

Join the party.

All along, we’ve said that if someone wanted to take the time, trouble, and expense to do some additional research along the lines of our protocols, that we’d be happy to include their data on our site. This is particularly true if it helped expand the selection of “real world guns” associated with the data for a given caliber/cartridge. Well, for the first time someone has expressed an interest in doing just that, prompting us to come up with an outline of what standards we feel are required for making sure it relates to our previous tests.

The biggest problem is that ammo manufacturers may, and do, change the performance of their products from time to time. This is why we have on occasion revisited certain cartridges, doing full formal chop tests in order to check how specific lines of ammo have changed. That gives us a benchmark to compare other ammo after a period of several years have passed, and shows how new tests relate to the old data.

But without going to such an extent, how can we be reasonably sure that new data collected by others using their own firearms is useful in comparison to our published data?

After some discussion, we feel that so long as any new testing includes three or more of the specific types of ammo (same manufacturer, same bullet weight & design) we had tested previously, then that will give enough of a benchmark for fair comparison. (Obviously, in instances where we didn’t test that many different types of ammo in a given cartridge, adjustments would need to be made). With that in mind, here are the protocols we would require in order to include new data on our site (with full credit to the persons conducting the tests, of course):

  1. Full description and images of the test platform (firearm) used in the tests. This must specify the make, model number, barrel length, and condition of the firearm. Ideally, it will also include the age of the firearm.
  2. That a good commercial chronograph be used. Brand isn’t critical — there seems to be sufficient consistency between different models that this isn’t a concern. However, the brand and model should be noted.
  3. Chronographs must be positioned approximately 15 feet in front of the muzzle of the firearm used to test the ammo. This is what we started with in our tests, and have maintained as our standard through all the tests.
  4. That five or six data points be collected for each type of ammo tested. This can be done the way we did it, shooting three shots through two different chronographs, or by shooting six shots through one chronograph.
  5. All data must be documented with images of the raw data sheets. Feel free to use the same template we used in our tests, or come up with your own.
  6. Images of each actual box of ammo used in the test must be provided, which show the brand, caliber/cartridge, and bullet weight. Also including manufacturer’s lot number would be preferred, but isn’t always possible.
  7. A note about weather conditions at the time of the test and approximate elevation of the test site above sea level should be included.

We hope that this will allow others to help contribute to our published data, while still maintaining confidence in the *value* of that data. Please, if you are interested in conducting your own tests, contact us in advance just so we can go over any questions.

 

Jim Downey

September 9, 2016 Posted by | .22, .223, .22WMR, .25 ACP, .30 carbine, .32 ACP, .32 H&R, .327 Federal Magnum, .357 Magnum, .357 SIG, .38 Special, .380 ACP, .40 S&W, .41 Magnum, .44 Magnum, .44 Special, .45 ACP, .45 Colt, .45 Super, .450 SMC, .460 Rowland, 10mm, 9mm Luger (9x19), 9mm Mak, 9mm Ultra, Anecdotes, Data, Discussion., General Procedures | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , | Leave a comment

Four .380 CCW guns compared.

Had a chance to get out in the cool and do some head-to-head comparisons of four different .380 ACP pistols. Here they are:

All 4

From left to right: Remington RM380, Rohrbaugh R380, Glock 42, and Sig Sauer P238.

I’m going to discuss the RM380 and the R380 together, since the first is the latest version of the latter. See, Rohrbaugh was sold to Remington about a year ago, and shortly thereafter Remington began to tweak the design of the R380 a bit, which I think was mostly an improvement.

The original Rohrbaugh was designed to be the perfect pocket pistol, with smooth edges in a *very* compact yet ergonomically-friendly package. And as my original review indicates, I thought it was a great gun.

RM380

The new RM380 is essentially the same design. They’ve changed the mag release from the European-style butt plate to a conventional side-button. They’ve given the grips more texture which make it easier to hold onto (many people who owned a Rohrbaugh added either a slip-on grip or some grip tape to accomplish the same thing). And they’ve added a slight beaver-tail to help keep the external DA hammer from pinching the web of the hand. They’ve made it so the slide locks back after the last round in the mag is fired. And they’ve made an additional magazine with a small extension which makes it even easier to shoot the gun. In my opinion, these are all improvements.

Changes which aren’t improvements? Well, the gun is lighter, at about 12.2 ounces (the Rohrbaugh was 13.5), and that contributed to increased felt recoil. The fit & finish are not nearly as nice as the R380. But then again, the Remington now costs about 1/3 what the original Rohrbaugh did.

Both guns have very basic sights. They are not guns to take to a competition at 25 yards. But both of them would pop 6″ spinners consistently at 7 yards. Both operated reliably, though I was just using hardball ammo — you’d want to select your preferred SD load and make sure that it shot out of your gun consistently and reliably.

The trigger on the Remington was still a VERY long pull. First time I shot it, I thought it was even worse than the Rohrbaugh in that regard. But after going back and forth between the two, I think it just felt longer, because in addition to being long it was fairly gritty and rough. That might clean up over time (this gun had less than 100 rounds through it), but it was noticeably worse than the Rohrbaugh.

I’ve done a brief review of the Glock 42 previously. What I said then still stands:

Comments: I did not expect to like this gun. I was REALLY surprised when I did. Seriously, it is the best-shooting Glock I’ve ever handled. For such a small gun, it fit my large hands comfortably and was easy to shoot well. With Glock quality and reliability, this may be the first .380acp I would seriously consider as a CCW gun.

I had done a previous review of the P238 with the classic 1911-style grips, which can be found here. This one was brand-new … literally, it had just been picked up at the store and then brought out to the range. And it has the Hogue-style grips and the finger extension on the mag, which I really liked.

Sig 238

The large front fiber optic sight made target acquisition fast and easy. The grips fit my large hands very well, and made it easy to shoot the gun accurately.

So, how did the four guns feel, shooting them head-to-head?

Jim and Sig

OK, a couple of notes first. We shot Remington UMC 95gr hardball ammo. We loaded up 6 rounds into each mag, then shot first one gun, then another, then another, then another. We mixed up the order of which followed which. And we shot at both 7 yards and 10 yards.

My personal preference for shooting? This order, with notes:

  1. Sig P238. Had the least perceived recoil and greatest accuracy. For fast, multiple hits it was great, getting back on target with minimal fuss. Very crisp and clean trigger.
  2. Glock 42. Slight sting from the recoil, accuracy almost as good as the Sig. Again, getting back on target was fast and easy. Trigger not as good as the Sig, but familiar to anyone who knows how any other Glock shoots.
  3. Remington RM380. The worst recoil of all four guns, but the improvements to the grips and the mag extension really make a difference for accuracy. The long, rough trigger almost moved this to #4.
  4. Rohrbaugh R380. The least accurate and the most difficult to get back on target for follow-up shots.

Now, I want to stress that all four guns were adequately accurate at 7 yards. Shooting fast, I could get at least 5 out of 6 within about a 12″ circle, and hit at least one or two hits on a 6″ spinner. Consistently. Since I don’t own any of these guns, I would expect that I could improve on that with practice. Of course, most Self Defense ammo is usually hotter, and would present more of a problem for recoil and target re-acquisition. But I still think all four guns would perform well.

That’s how I would rank the guns for shooting. But that isn’t the only factor in considering a gun for concealed-carry.

As I noted in my review, I don’t like having a “cocked & locked” pistol in my pocket. And if I’m going to have a CCW weapon in a holster, then I might as well step up to a full 9mm as opposed to a .380. So that’s a big strike against the P238 in my book, as nice a gun as I actually found it to be.

It also depends on exactly what you want out of your minimal CCW gun. Do you want the lightest? The thinnest? The smoothest? Or does shoot-ability matter more?

It’s a matter of personal preference. I think that I would rank my selection for concealed carry this way, with some brief explanation for each:

  1. Remington RM380. A really good choice for a light, thin, pocket pistol intended to be used as either a back-up or deep cover gun. But I’d spend some time working on smoothing out that trigger.
  2. Glock 42. Not as small or as light as the RM380. But much better sights, and a most stable platform in my hands. Meaning that I would consider it as a primary CCW, not just as a back-up.
  3. Rohrbaugh R380. Weighs about what the Glock does, but is the smallest/thinnest of all four.
  4. Sig P238. A great shooter. And if you’re willing to carry it cocked & locked in your pocket, then I can easily see how this could be anyone’s first choice. But for me, I’d want it in a belt holster (or shoulder rig), and that’s a big disadvantage — I might as well carry a much more powerful gun.

But hey, that’s just my calculation. Feel free to weigh in with your own.

 

Jim Downey

 

December 17, 2015 Posted by | .380 ACP, Discussion. | , , , , , , , , , , , , , , , | 3 Comments

Six shooter.

Well, well, well, BBTI made it to six years of shooting fun and research!

Yup, six years ago today we posted the first iteration of Ballistics By The Inch, and included data for 13 different handgun cartridges. Since then we’ve continued to expand on that original research, including some extensive testing on how much of an effect the cylinder gap on revolvers has, what performance differences you can expect from polygonal over traditional land & groove rifling, and added another 9 cartridges, as well as going back and including a very large selection of real world guns in all the different cartridges. This blog has had 100,000+ visitors and the BBTI site itself has had something like 25 – 30 million visits (the number is vague because of changes in hosting and record-keeping over time).

We’ve had an impact. I’ve seen incoming links from all around the world, in languages I didn’t even recognize. There’s probably not a single firearms discussion group/blog/site out there which hasn’t mentioned us at some point, and our data is regularly cited in discussions about the trade-offs you make in selecting one cartridge or barrel length over another. I’ve answered countless emails asking about specific points in our data, and have been warmly thanked in return for the work we’ve done. And on more than a few occasions people have pointed out corrections which need to be made, or offered suggestions on how we could improve the site, sometimes providing the results from their own crunching of our data.

When we started, it was fairly unusual to see much solid information on ammo boxes about how the ammunition performed in actual testing. Now that information is common, and expected. Manufacturer websites regularly specify real performance data along with what kind of gun was used for that testing. And the data provided has gotten a lot more … reliable, let’s say. We’ve been contacted by both ammo and firearms manufacturers, who have asked if they can link to our data to support their claims of performance — the answer is always “yes” so long as they make it clear that our data is public and not an endorsement of their product. And we’ve never taken a dime from any of those companies, so we can keep our data unbiased.

And we’re not done. We have specific plans in the works to test at least one more new cartridge (and possibly revisit an old favorite) in 2015. I try to regularly post to the blog additional informal research, as well as sharing some fun shooting and firearms trials/reviews. There’s already been one firearms-related patent issued to a member of the BBTI team, and we’ll likely see several more to come. Because we’re curious guys, and want to share our discoveries and ideas with the world.

So, onward and upward, as the saying goes. Thanks to all who have cited us, written about us, told their friends about us. Thanks to all who have taken the time to write with questions and suggestions. And thanks to all who have donated to help offset the ongoing costs of hosting and testing — it makes a difference, and is appreciated.

 

Jim Downey

November 28, 2014 Posted by | .22, .223, .22WMR, .25 ACP, .30 carbine, .32 ACP, .32 H&R, .327 Federal Magnum, .357 Magnum, .357 SIG, .38 Special, .380 ACP, .40 S&W, .41 Magnum, .44 Magnum, .44 Special, .45 ACP, .45 Colt, .460 Rowland, 10mm, 6.5 Swedish, 9mm Luger (9x19), 9mm Mak, 9mm Ultra, Anecdotes, Data, Discussion., General Procedures, Links, Shotgun ballistics | , , , , , , , , , , , , , , , , , , , , , | 1 Comment

And now for some newer guns.

Last week I posted about some historical reproductions. Now let’s have a quick overview of some newer guns we got to try on the same trip to the range. I’ll include some *very* brief comments, and may return to do longer reviews later when I have some additional time.

First up, the USFA ZiP .22LR, shown with 25-round mag for additional grip purchase:
081408

Comments: Ugh. I hated this gun. Seriously. It’s awkward to hold, worse to shoot, all sharp angles and weirdly thick. It’s the kind of ugly that isn’t even interesting. The design requires you to put your hand right up close to the muzzle to cycle the action. Since it was brand new, I’ll forgive it having problems cycling properly (this is fairly common with rim-fire guns which are brand new), but I sure as hell wouldn’t want to have to shoot it enough to break it in.

Bottom line: if someone insisted on giving me one of these, I’d just turn around and sell it to use the money for almost any other purpose.

 

Next, the Excel Arms MP-22 .22mag Accelerator:

 

081409

 

Comments: Nice gun. Shot very well, and the 8.5″ barrel is sufficiently long to get some benefit out of the .22WMR cartridge.  The heavy bull barrel also does a good job of taming the recoil and muzzle-flip, as can be seen in this vid:

 

Next, the SIG 232 .380acp:

 

081412

 

Comments: SIG SAUER’s version of the classic PPK. Just what you’d expect: quality, accurate, easy to shoot for even someone with large hands, as can be seen in this image of my buddy who has even larger hands than I do:

 

081415

 

Next, the Glock 42 .380acp:

 

081416

 

Comments: I did not expect to like this gun. I was REALLY surprised when I did. Seriously, it is the best-shooting Glock I’ve ever handled. For such a small gun, it fit my large hands comfortably and was easy to shoot well. With Glock quality and reliability, this may be the first .380acp I would seriously consider as a CCW gun.

 

Next, the Kimber Solo Carry 9mm:

 

081418

 

And here’s a vid of shooting it:

 

Comments: Kimber quality. Lot of power in a small package, and I felt it in the web between thumb and forefinger of my dominant hand. But that was just a sting, not uncomfortable, even shooting premium SD ammo. Another good candidate for CCW.

 

And here’s a quick look at an old classic: Winchester Model 70 XTR Featherweight in 6.5 Swedish (6.5mm x 55mm)

 

081421

 

Comments: Like I said, a classic. And as such, a known quantity. But the first time I’ve shot one in 6.5 Swede, and I was pleasantly surprised by how little recoil there was.

Well, that’s all that I have images of, though we also shot a Chiappa M1-22 and a KelTec PMR-30 .22 mag. Again, both are known quantities and shot as expected. Oh, and my buddy gave my Steyr S9 a go, and you can see that vid here.

As noted, I may revisit any of these with a longer review sometime later, but don’t hold your breath.

 

Jim Downey

 

August 26, 2014 Posted by | .22, .22WMR, .380 ACP, 6.5 Swedish, 9mm Luger (9x19), Anecdotes, Discussion. | , , , , , , , , , , , , , , , , , , , , , , , | 2 Comments

Some Muzzle Energy comparisons.

I got a nice note from Jason at Leaf Technologies, who had been curious about how different cartridges compared in terms of Muzzle Energy (ME). So what he did was take the data from BBTI and average the ME curves for the cartridges he was interested in, then plot them head-to-head in one Excel graph. He sent me the result, and with his permission I am sharing it here:

MEgraph

(Click to enlarge.)

I always love to see how others use our data, and the conclusions they draw from it. It’s EXACTLY the sort of thing we hoped would happen, and why we’ve made the data freely available. If you would like to read some of Jason’s conclusions, and the discussion they engender, pop over to the Northeast Shooters Forum.

And if you have your own interesting spin on how our data can be used in a new way, drop me a note. If I think it’d be of interest to others, I’ll be happy to post it here/link to it. Just send an email to jimd@ballisticsbytheinch.com

 

Jim Downey

December 12, 2013 Posted by | .357 Magnum, .357 SIG, .380 ACP, .40 S&W, .45 ACP, 10mm, 9mm Luger (9x19), Data, Discussion., Links | 2 Comments

With charts! Graphs! Slo-mo!

John Ervin at Brass Fetcher Ballistic Testing has put together another great video presentation, showing in several ways how Jacketed Hollow Point (JHP) ammo performs in comparison to Full Metal Jacket (FMJ) ammo for 9 different handgun cartridges. It’s long (22 minutes), but very nicely documents just exactly how the two different bullet styles behave at handgun velocities. Here’s the video:

 

 

The cartridges covered are .22 LR, .25 ACP, .32 ACP, .380 ACP, 9mm Makarov (9×18), 9mm Police (Ultra), .38 Special, 9mm Luger (9×19), and .45 ACP.  His data and presentation makes a great companion to our own data, and I really recommend that you set aside the time to watch the video at your earliest convenience.

 

Jim Downey

October 22, 2013 Posted by | .22, .25 ACP, .32 ACP, .38 Special, .380 ACP, .45 ACP, 9mm Luger (9x19), 9mm Mak, 9mm Ultra, Data, Discussion., Links | , , , , , , , , , , , , , , , , , , , , , | Leave a comment

The $1 freebie – PLUS!

So, I have another free promotional day running on my novel Communion of Dreams today. All the info about it is in this blog post: the $1 freebie.

That’s all well and good. But as noted previously, I am offering BBTI fans a little something extra:

That’s a pair of Versacarry holsters with a paperback copy of the book. These are both for .380/9mm/.357 Sig barrel guns, and are the “small” and “medium” sizes.

If you’re not familiar with the Versacarry, here’s a good review by one of the other Guns.com writers. I’ve tested these two holsters, and found them to be an interesting and potentially useful minimalist IWB holster.

But as I noted previously, I’m not a fan of IWB. So I’m giving both of these Versacarry holsters away. Same rules as last time:

So, here’s the deal: make any kind of contribution to the Kickstarter (as little as $1.00 – I won’t mind), and enter into a drawing for a holster. Please note that this is *IN ADDITION* to the other rewards there on the Kickstarter – all perfectly good and valuable rewards. Then just come here and leave a comment, or post it on the BBTI Facebook page, or send me a Tweet. I’ll enter your name into a completely separate drawing. And each week or so while the Kickstarter is going I’ll select a name and send that person whichever holster is up for grabs. Each winner’s name will go back into the hat for the next drawing, so you have multiple chances to win (meaning that the sooner you enter, the better for you).

If you’ve already contributed to the Kickstarter, just let me know and your name will go in the hat for the first drawing (and subsequent ones).

So, what are you waiting for? Go register!

I’ll draw a name from those submitted on Friday, Oct. 5th.

Jim Downey

September 30, 2012 Posted by | .357 SIG, .380 ACP, 9mm Luger (9x19), 9mm Mak, 9mm Ultra, Discussion., Links | 4 Comments

It’s Up!

The new Ballistics By The Inch site is now up and running! Bigger, Faster, And with More DATA! Take a look, spread the word, let us know if there are any glitches or problems.

Jim Downey

December 1, 2011 Posted by | .22, .223, .25 ACP, .32 ACP, .32 H&R, .327 Federal Magnum, .357 Magnum, .357 SIG, .38 Special, .380 ACP, .40 S&W, .41 Magnum, .44 Magnum, .44 Special, .45 ACP, .45 Colt, .460 Rowland, 10mm, 9mm Luger (9x19), 9mm Mak, 9mm Ultra, Anecdotes, Data, Discussion., General Procedures, Links | , , , , | Leave a comment

Lookit the purty colors!

Nice graph and discussion about muzzle energy comparisons over barrel length using our data over on The Firing Line:

Full thread here: Light rounds in short barrels.

Jim Downey

July 10, 2011 Posted by | .32 ACP, .357 Magnum, .38 Special, .380 ACP, .45 ACP, Data, Discussion. | Leave a comment

Interesting development.

Interesting – for the first time, I’ve seen someone use the BBTI data as a baseline for whether or not to trust claims by an ammo manufacturer about the performance of other ammo which we haven’t tested. Here’s the quote from a discussion on THR:

As Mayo has already said, it’s from Corbon. If you will check Corbons velocity claim for other loads with the ballistic by the inch’s real gun tests of the same loads, you will see they are very close. Therefore I’m comfortable with using the Corbon site data for this load.

Perhaps a subtle distinction, but to a certain extent it moves our data into the category of being the trusted independent research by which other things are measured. Very interesting, indeed.

Jim Downey

(Oh, something else: my latest article is up on Guns.com, and now my byline also has links to all my other articles, if you’re interested.)

May 20, 2011 Posted by | .380 ACP, 9mm Luger (9x19), Data, Discussion. | Leave a comment

New energy charts added.

Thanks once again to the efforts of Jason Coon, we have now added the ME (muzzle energy) charts to the website for the new round of tests. As noted on the website:

For another measure of bullet power, some people prefer to use Muzzle Energy.  One of our BBTI readers went through and did all the calculations for this, using our data, and has been kind enough to share this information. You can find our Excel data files with muzzle energy calculations added in red, and a muzzle energy graph for each caliber on the caliber pages. 

Thanks, Jason!

Jim Downey

September 14, 2010 Posted by | .380 ACP, 9mm Mak, 9mm Ultra, Data | 1 Comment

New data posted: .380, 9mm Mak and 9mm Ultra.

Well, we’ve done another substantial upgrade to the BBTI site – adding in two new cartridges and greatly expanding another. In addition we’ve done some clean-up and tweaking – big kudos to my good lady wife for all her hard work!

The two new cartridges are 9mm Makarov (9×18) and 9mm Ultra (also call 9mm Police). Both of these were ‘European’ rounds, and are only available to a limited degree here in the US. This is why we only were able to test a limited variety of ammo (two for the Mak, one for the Ultra) and only used one ‘real world’ gun. I had been somewhat uninterested in both cartridges previously, but based on our tests I certainly would consider them to be viable self-defense rounds. It would be interesting to see the selection of both guns and ammo expanded.

But the bulk of our testing, and data, this time around was in revisiting the .380 ACP cartridge. We tested 8 different brands of ammo, including two we had tested previously. And we also did ‘real world’ tests of an additional 8 handguns. This was such a large increase over the previous data sets that we added a whole additional page and separate link in the “results”, and you can find it here. I had always considered .380 a marginal cartridge for self defense, though it is very popular due to the large number of very small pistols which shoot the cartridge. And it still wouldn’t be my first choice for a self-defense gun. But were I going to carry it, I’d feel very comfortable loading it with either of the Buffalo Bore ammos which we tested – they were quite impressive.

Lastly, we had a chance to do a bit of additional testing of the .327 Magnum round, this time shooting it through a Bond Arms derringer. This round still continues to impress me, and I am giving serious thought to getting one of these barrels for my own derringer.

So, check out the new data, and spread the word!

Jim Downey

September 10, 2010 Posted by | .327 Federal Magnum, .380 ACP, 9mm Mak, 9mm Ultra, Data | 8 Comments

It’s growing!

Well, it’s that time of the month – stats report.

BBTI had just under 250,000 hits last month – once again, making that our second-largest month total, only beat by the first full month after we launched the site (Dec, ’08 with 300k). That puts our grand total number of hits to date to 3,243,113. Impressive!

And my Good Lady Wife has made a lot of progress on getting the new data from last week’s .380 testing entered into the spreadsheets. We should have all of that information ready to post in the fairly near future.

Cheers!

Jim Downey

September 1, 2010 Posted by | .380 ACP, Data | Leave a comment

New round of .380 ACP tests.

Well, it was a fun couple of days this week out at Camp BBTI – doing a new round of testing, primarily focused on the .380 ACP cartridge (9x17mm). This has become an increasingly popular cartridge used for small self-defense guns, so we decided to expand the different ammos we tested using the BBTI ‘chop tests’ as well as a dozen real world guns. You can see the guns here:

And here’s a great pic of Jim K and Keith at the shooting table, getting ready to shoot the 4″ barrel:

We also did the full chop tests (as well as a real world gun) on 9mm Makarov and 9mm Ultra – two cartridges which are between a .380 and the 9mm Parabellum in terms of power/performance. We’ll post the full data on the BBTI site as soon as everything is crunched and ready – but for now let me just say that heretofore I haven’t been a big fan of the .380, but with the right ammunition I’d consider carrying a gun in that caliber. We were all surprised at how well the Buffalo Bore rounds performed at even the 2″ barrel length.

Jim Downey

Cross posted to my personal blog.

August 26, 2010 Posted by | .380 ACP, 9mm Luger (9x19), Data, Discussion. | Leave a comment

Wiki, oh Wiki, where do you roam?

Just spent a chunk of the afternoon and early evening doing something I had been meaning to do for at least a year: adding info about BBTI to various and sundry Wikipedia pages about ballistics and cartridges. I still need to create an actual ‘page’ about BBTI, but haven’t ever done that, so . . .

Anyway, now for all the cartridges/calibers we tested there are links on Wikipedia, plus any related entries that I could think of. But if you find yourself poking around there, and come across an entry which would appropriately link/mention BBTI, please edit it to do so (or drop me a note and I’ll take care of it.) This isn’t an effort to get more hits to the BBTI site (we’re rapidly approaching 2.5 million), but just to help more people get the information that they need.

Jim Downey

April 30, 2010 Posted by | .25 ACP, .32 ACP, .32 H&R, .327 Federal Magnum, .357 Magnum, .357 SIG, .38 Special, .380 ACP, .40 S&W, .41 Magnum, .44 Magnum, .44 Special, .45 ACP, .45 Colt, 10mm, 9mm Luger (9x19), Data, Discussion., Links, Uncategorized | 2 Comments

Closing in on a million.

Just under a month ago I wrote about launching the major upgrade to BBTI. Since then, we’ve had 217,390 hits to the site, bringing us to just shy of one million hits (986,999) as of midnight. Given how things have been going the last couple of days, I expect we’ll break a million today or tomorrow. [edited to add: we had over 21 thousand hits on 6/27, thereby crossing a million.]

And that’s kinda cool.

So, thanks to all who passed along word of our project. In particularly, our top ten referrers have been:

  1. www.darkroastedblend.com
  2. www.google.com
  3. www.defensivecarry.com
  4. www.thefirearmblog.com
  5. www.ar15.com
  6. www.thehighroad.org
  7. www.thefiringline.com
  8. ballisticsbytheinch.wordpress.com
  9. forums.somethingawful.com
  10. www.saysuncle.com

I find it interesting that the top referrer (by a long shot) isn’t even a firearms-related site. That we’ve risen high in Google searches comes as very little surprise, and I’m pleased that the BBTI blog itself has such a prominent spot, just after five of the best known gun forums/blogs. That’s kinda cool, too.

Anyway, thought I would pass this bit of good news along.

Jim Downey

(Cross posted to my personal blog.)

June 27, 2009 Posted by | .25 ACP, .32 ACP, .32 H&R, .327 Federal Magnum, .357 Magnum, .357 SIG, .38 Special, .380 ACP, .40 S&W, .41 Magnum, .44 Magnum, .44 Special, .45 ACP, .45 Colt, 10mm, 9mm Luger (9x19), Data, Links | 1 Comment

Six months ago.

Six months ago we launched Ballistics By The Inch. And since then we’ve had over 770,000 hits, one major magazine article, and coverage & discussion of the site in countless gun forums & blogs around the globe. When I have checked the stats for the site, I have never failed to be impressed with just how widely it has become known.

Well, tonight we posted a major upgrade to the whole site. This includes three additional caliber ‘chop tests’, but it also includes data collected from testing over 40 additional “real world” guns – including a baker’s dozen carbine-length guns. This data has been separated out into a new series of graphs for easy comparison. All together, there are now over 150 graphs showing ballistic performance – along with all the charts giving numerical averages for each 1″ increment in barrel length for 16 different calibers. And for the true data junkies, there are downloadable files (in two formats) for the entire sequence of initial tests, and another set for the second round of testing done in April 2009.

Like the initial project, this major upgrade and revision has been a huge job – and one only made possible by a lot of work from several individuals. Yes, there were the three of us testers from the original project. But there was also the addition of a fourth tester this time around who helped us gather & operate all those ‘real world’ guns, and I would like to welcome Keith to our team. But I would especially like to thank my good lady wife for all the html coding & design for our website – both the last time and with this major revision. Quite literally, none of this would have been available without her hard work.

There will probably be minor tweaks and additions to the site in the coming months and years. We still have some ideas of data which might be of interest to the gun community. But for now we hope that you will enjoy and make use of the data provided, and help to spread the word to others who may be interested.

Cheers!

Jim Downey

(Cross posted to my personal blog.)

May 28, 2009 Posted by | .25 ACP, .32 ACP, .32 H&R, .327 Federal Magnum, .357 Magnum, .357 SIG, .38 Special, .380 ACP, .40 S&W, .41 Magnum, .44 Magnum, .44 Special, .45 ACP, .45 Colt, 10mm, 9mm Luger (9x19), Data | 3 Comments

.380 ACP

Here is a post pertaining to the testing and results obtained for the .380 ACP caliber.

November 26, 2008 Posted by | .380 ACP | Leave a comment