With a little luck in about two months we’ll be doing the formal chop tests of .45 Super, .45 SMC, and some additional .45 ACP loads. We’ve now got all the ammo on hand, and it’ll be a fun (but tiring) weekend. I thought I would share what actual ammo we will be testing, with the manufacturer’s velocity data:
45acp Low Recoil Std P 185gr FMJ-FN 850fps
45acp Std P 230gr FMJ-RN 850fps
45acp +P 185gr JHP 1150fps
45acp +P 230gr JHP 950fps
45 Super 185gr JHP 1300fps
45 Super 200gr JHP 1200fps
45 Super 230gr FMJ 1100fps
45 Super 230gr JHP 1100fps
45 Super 255gr Hard Cast 1075fps
45acp +P 160gr Barnes TAC-XP 1200fps from 5” 1075fps from 3.5”
450 SMC 185gr JHP 1310fps from 5” 1911
450 SMC 185gr Bonded Defense JHP 1310fps from 5” 1911
450 SMC 230gr Bonded Defense JHP 1135fps from 5” 1911
Critical Defense 45acp Std P 185gr FTX Muzzle 1000fps
Critical Duty 45acp +P 220gr Flexlock Muzzle 941fps
45 Super 170gr CF 1250fps
45 Super 185gr XTP JHP 1300fps
45 Super 230gr GD JHP 1100fps
In addition to the first data for both the .45 Super and .45 SMC cartridges, this will also almost double the number of .45 ACP loads we’ve tested. We’re looking forward to it!
As I said last time, before I get into all the nuts & bolts detail of the handloads (which I will do below), let me summarize what I learned for those who aren’t into the geeky stuff. Please note all of this is VERY TENTATIVE, based on this second set of experiments!
- Going to a tighter crimp pretty much solved the problems I had encountered the first time with bullet separation in the Boberg. This time I only had one partial separation, in a 230gr bullet.
- Likewise, going to shorter O.A.L. (Over All Length) for most of the loads eliminated most problems I had experienced with feeding.
- These factors, combined with some different power levels, have put me on the right track to developing a ‘true’ .45 Super load (something which is actually more than just a .45 ACP +P).
To re-iterate: Coming up with a hand load is more art than science, since there are many different factors to consider: type and amount of propellent (gunpowder), weight and profile of the bullet chosen, the overall length (O.A.L.) of the final cartridge because the depth of the bullet seating changes the case capacity and hence the pressure profile, what type and degree of crimping, and the type of primer used.
Here are the numbers, in the same format as last time for easy comparison. Once again, let me note that these are experimental loads, and you choose to use the information here entirely at your own risk, without endorsement from me:
Titegroup powder Bullet O.A.L.* Glock 21 (5.0″) Boberg XR45 (3.75″)
6.7gr 185gr XTP 1.175″ 1050fps 970fps
7.3gr 200gr RNFP 1.250″ 1000fps 925fps
6.3gr 230gr RNFP 1.250″ 950fps 900fps
HP-38 powder Bullet O.A.L.* Glock 21 (5.0″) Boberg XR45 (3.75″)
7.2gr 185gr XTP 1.175″ 900fps 840fps
7.2gr 200gr RNFP 1.250″ 900fps 830fps
6.8gr 230gr RNFP 1.250″ 860fps 790fps
Longshot powder Bullet O.A.L.* Glock 21 (5.0″) Boberg XR45 (3.75″)
10.0gr 185gr XTP 1.200″ 1100fps 1025fps
9.5gr 200gr RNFP 1.250″ 1010fps 910fps
9.0gr 230gr RNFP 1.250″ 1020fps 960fps
Curiously, while generally going to a shorter O.A.L. (meaning that the bullet was seated deeper) resulted in the expected increase in velocity, there are a couple of instances where that didn’t happen. I’m not sure how to explain it — could have been an data reporting error on my part (or from the chrono) either this time or last time. Or it could have been not having a large enough sample size. Or it might have some variation in the handloads made for either batch of tests. I just don’t know.
But I’m not going to worry about it overmuch. Now that I seem to have resolved the separation and feeding issues, and seem to be getting good numbers, I am going to build off of these results. That means slight increases in propellant levels so that I surpass published performance numbers for .45 ACP +P. Because of my previous tests, BBTI formal testing, and published numbers for .460 Rowland, I have an upper bound for how the Glock will handle the loads safely and there’s still a lot of leeway before I start pushing those bounds.
One step at a time.
Oh, and I continue to be happy with how the XR45-S is performing. I am still waiting on some “Generation 2″ magazine springs, which I think will eliminate the last of the problems I was having with feeding.
Well, we’re having another delightful warm spell here in mid-Missouri, so yesterday afternoon I took advantage of it and went out to the range to give the little guy a try.
As I noted before, I have actually shot this particular gun a couple of times previously, and just loved it. But it had been a while, and I couldn’t remember specifically what ammo types we had used. So I packed up what variety of 9mm loads I had on hand, along with my chrono (which I needed to also do some more testing of .45 Super loads — more on that later), and to see whether anything had changed.
Because of the way they operate, the Boberg pistols have a tendency to be very particular about what ammo they like. Ammo which doesn’t have a sufficient crimp is prone to separate (the case being jerked away from the bullet). It’s an issue which is well known, and there’s a list of compatible ammo for both the XR9 and the XR45. But while those crowd-sourced lists are useful, the final word is always what specific ammo your particular gun will handle. For me, that’s particularly something I want to determine for any self-defense pistol before I will carry it.
Full details to follow, but for those who just want the short version: oh baby! The XR9 ate everything I fed it without a problem. Including my standard 9mm reloads. No mis-feeds. No bullet separation. No problems. And it was a real joy to shoot, which isn’t something I normally say about a pocket pistol handling full-power SD loads.
OK, for those want the details …
Below are informal* chrono numbers for seven different ammo types I had. These are all for the Boberg. But I also ran a few through my Steyr S9 for comparison, which usually just had an advantage of about 10 fps over the Boberg (the barrel on the Steyr is about a quarter of an inch longer). If that much.
- Buffalo Bore 124gr JHP +P+ 1,230 fps
- Federal 124gr Hydra Shok JHP 1,025 fps
- Reloads. (4.4gr HP-38, 124gr Rainier FMJ bullet) 1,020 fps
- Remington 124gr FMJ 1,040 fps
- Speer GDHP 115gr JHP 1,210 fps
- Speer GDHP 124gr JHP 1,100 fps
- Speer GDHP 124gr JHP +P ‘Short barrel’ 1,150 fps
As you can see, all pretty respectable numbers. And in keeping with both the claims of the manufacturer as well as what we had tested previously (where there’s overlap). I wouldn’t have any qualms carrying any of the Speer ammo, but my preferred SD ammo is currently the Buffalo Bore. Happily, the Boberg shot all of them without a glitch. And after getting my chrono numbers, I ran several magazines worth through the gun doing some quick shooting at cans, was getting excellent accuracy from it at about 15 yards.
I brought it home, stripped and cleaned it, and now consider it reliable enough to carry. Of course, I will continue to practice with it regularly, and keep a close on on how it performs with my reloads, and occasionally run a mag of carry ammo through it, but I don’t expect any problems. It’s a nice little gun.
*By ‘informal’, I mean just using one chrono and without the lighting rig we now use for formal testing. And I would just run a magazine of ammo through, mentally noting the numbers in a running tally, then writing them down for that particular ammo, so they are necessarily just ‘ballpark’ figures. But since they jibe well with our previous numbers and what the mfg claims (which I only discovered when I sat down to write this), I think they’re pretty good.
Over the course of the Christmas holiday weekend we had some unseasonably warm and pleasant weather, so I decided to go out to the range and test the first in a series of experimental hand loads I had developed for my new Boberg XR45-S. Since the XR45 is rated for the .45 Super cartridge, these loads were intended to start at about the power level of a .45 ACP+P load to give me a baseline, which I can then build up from there. I wanted to do this because there are actually very limited commercial choices in the .45 Super cartridge, and even less in the way of good testing or reloading data (which is one of the reasons why we’re going to be doing the BBTI chop tests on that cartridge in 2015 as I’ve previously mentioned).
Now, before I get into all the nuts & bolts detail of the handloads (which I will do below), let me summarize what I learned for those who aren’t into the geeky stuff. Please note all of this is VERY TENTATIVE, based on this first set of experiments!
- The ballistic performance ‘sweet spot’ seems to come in a 200gr bullet loading, in terms of how much loss comes from a shorter barrel (the difference between the 3.75″ XR45 barrel and the 5.0″ Glock 21 barrel I used for comparison.
- I consistently had problems with not having a tight enough crimp on the rounds at these higher power levels over a lower power standard .45 ACP practice loads. This makes sense because the slide would be moving faster with the higher power loads, leading to more problems with bullet separation.
- I had problems with a 185gr jacketed hollow point bullet that I didn’t have with either the 200gr or 230gr round-nose bullets. And the problem seemed to be worse with the Hornady XTP JHP bullet than in factory loaded JHPs I have tried. This *might* be due to the increased ‘throat’ size of the XTP in comparison to other brands. Maybe.
Now, about my hand loads. These were all figured based on a variety of sources and my own experience and experiments in creating loads for the .460 Rowland in 2013, since, as noted, there is very little good information readily available for the .45 Super. And while I wanted to try to start at about .45 ACP+P power levels, I wanted to be fairly conservative in doing so, just to be safe. Coming up with a hand load is more art than science, since there are many different factors to consider: type and amount of propellent (gunpowder), weight and profile of the bullet chosen, the overall length (O.A.L.) of the final cartridge because the depth of the bullet seating changes the case capacity and hence the pressure profile, what type and degree of crimping, and the type of primer used. I decided to just use all one type of primer (a fairly standard one) as well as the same amount of light crimp, to help reduce the number of different factors. I also decided to pretty much standardize the O.A.L. though you will see some variation in the Longshot loads. Like I said, it’s more art than science, and you have to start someplace.
OK, here’s a table showing the different loads and how they performed. These are experimental loads, and you choose to use the information here entirely at your own risk, without endorsement from me:
Titegroup powder Bullet O.A.L.* Glock 21 (5.0″) Boberg XR45 (3.75″)
6.5gr 185gr XTP 1.175″ 990fps 900fps
7.3gr 200gr RNFP 1.275″ 1100fps 1070fps
6.3gr 230gr RNFP 1.265″ 1020fps 970fps
HP-38 powder Bullet O.A.L.* Glock 21 (5.0″) Boberg XR45 (3.75″)
6.8gr 185gr XTP 1.175″ 600fps 560fps
8.0gr 200gr RNFP 1.275″ 920fps 850fps
6.8gr 230gr RNFP 1.265″ 840fps 770fps
Longshot powder Bullet O.A.L.* Glock 21 (5.0″) Boberg XR45 (3.75″)
10.0gr 185gr XTP 1.250″ 1020fps 960fps
9.0gr 200gr RNFP 1.250″ 1070fps 1010fps
8.0gr 230gr RNFP 1.275″ 980fps 880fps
*O.A.L. = Over All Length
OK, that’s obviously ‘warts & all’, following the same openness that we have done in the formal BBTI tests. I’ve only been back into reloading for about five years, and still have a hell of a lot to learn — as you can see from how badly underpowered the HP-38 loads turned out.
But it’s a decent start. I’m going to spend some more time thinking about the next step, see what additional research and comments suggest (feel free to offer your opinions!). The .45 Super loads available from Buffalo Bore are about 10-20% more powerful than these base loads, so I still have a ways to go in finding the right mix. Given the problems I was having with bullet separation (where the mechanical action of the Boberg causes the case to jerk away from the heavy bullet), the first step is probably to increase my crimp, and see what that does to the velocity (since a strong crimp will cause a greater pressure build-up before the bullet is released). I may also see what seating the bullets deeper does (meaning that the O.A.L. will be less, and again there will be a great pressure spike).
Wish me luck.
As Frank said on Facebook this afternoon:
I knew when you got the 45 you wanted the 9mm too. It was only a matter of time.
Guilty as charged. Look what followed me home today:
Yup, a Boberg XR9-S: a new little brother for my XR45-S. As I did in that post, I thought I’d put up some comparison pix to give a sense of just how small this gun is, even though it really doesn’t feel like it when you hold it or shoot it.
Here it is again with the XR45:
And here’s the view that shows the thickness of both:
Yeah, there’s a difference. Here’s the XR9 with a Springfield EMP (also 9mm, 3″ barrel – the XR9 has a 3.35″ barrel):
And with my J-frame in .38 Special:
For grins, here it is on top of the J-frame:
OK, but how about in comparison to the classic premium pocket 9mm, the Rohrbaugh R9? Here ya go:
The R9 *is* a fantastic little gun, and I love it. I don’t love shooting it, though. The XR9 wins in that category. It will also handle +P ammo and holds one more round (7+1) than the Rohrbaugh. But it is a bit bigger:
Lastly, here it is with a Bond Arms derringer — a great little gun, with a variety of different barrels available. But there’s still just two shots in the derringer, and it actually weighs about 3 ounces more.
While I have shot this gun (it belonged to a good friend), and know it to be dependable, I do still want to make sure that it will be able to reliably digest my preferred SD loads. So more on that to come!
First, I want to share a couple of things I discovered in getting the Boberg out of the box, taken apart, and cleaned. This wasn’t strictly necessary, of course, because it came from the factory properly cleaned and lubed. But I’m very much a hands-on learner, and wanted to see what I was dealing with.
The gun is very user-friendly. To take it down for field stripping, you just rack the slide back, turn a lever, then move the slide forward. You don’t need any special tools, or an extra hand, or the strength of the pure. In that sense, it is very much in the modern design, as easy as a Glock. BUT without the need to dry-fire the gun first (which always makes me twitch, and may be the only thing I really dislike about the Glock design.)
Once the slide comes away from the frame, there are only 4 parts which come apart (other than the slide itself). There are no little fiddly bits to get lost or to spring out of sight when you’re not looking. You don’t have to disassemble the gun in a paper bag so that you don’t lose anything. It’s easy, obvious, and once you’ve done it following the owner’s manual, I doubt you’ll ever need to refer to the manual again. You can’t ask for more than that.
So, dis-assembly, cleaning, and re-assembly is all a breeze. Nice!
Having done so, I went through my box of misc. holsters to see what the Boberg might fit into. Because the XR45 is so new there are damned few holster-makers out there who have a holster listed to fit it. And I discovered something VERY interesting: the slide has almost the exact same dimensions as the Glock 21 (and similar Glock models). I first found this out in trying it in this little plastic holster: Glock Sport Combat Holster. I got out my calipers and did some measuring, and found that there was less than a millimeter difference in the width of the slide on the Glock 21 and the Boberg. They also have very similar profiles. And if you measure from the deepest pocket on the backstrap of either gun (where the web of your hand settles in) to the front of the trigger guard, there is less than 2 millimeters difference. Meaning that the Boberg fits almost perfectly into an open-muzzle holster for a Glock 21. Good to know!
OK, so what about going out shooting with the Boberg today?
Overall, I was very happy with how it performed on a first outing. I had a couple of minor glitches with improper feeding and ejection, but I am going to hold off on making any decisions about that until I give it at least another range session to break in. It does seem to fling spent cases somewhere into the next county, and I’m going to have to get used to that since I like to recover those cases and reload them. My very mild reloads wouldn’t cycle properly (the ones I took out are *really* mild), so I learned to take somewhat hotter loads. And the trigger is really l o n g … longer than either J-frame I own, and about like the little DAO Rohrbaugh I have. The gun seems to shoot a little to the left for me, but I won’t adjust the sights until I’m more familiar with it. Even so, I was able to consistently ding a 6″ spinner at 10 yards, which is all I expect from a pocket pistol.
How did it handle the different ammos I tried? Quite well, all in all.
I took my Glock 21 (5″ barrel) along for comparison, and shot over a single chronograph. Here are the average numbers:
Glock 21 Boberg
CorBon DPX 185gr +P 1060FPS 1030FPS
Winchester SXZ Training 230gr 850FPS 795FPS
Speer GDHP 230gr 840FPS 760FPS
CorBon JHP 230gr +P 980FPS 900FPS
The CorBon ammo is in line with what we tested formally. So that was good to see.
All together, I put about 100 rounds through the Boberg this afternoon, and wasn’t experiencing any real soreness or tiredness from all that shooting, which is unusual for such a small gun and full power loads. And just for comparison, I shot my .38Sp J-frame with 158gr LSWCHP +P from Buffalo Bore, which is my preferred SD loading for that gun, and the recoil was worse than with the Boberg. That’s for a ME comparison of 386 ft/lbs for the J-frame to 436 ft/labs for the Boberg with the 185gr CorBon loading.
So, that’s that. Already, the Boberg is equal to the J-frame, in my eyes. I shoot it as well. It has the same, or greater, amount of power. Reloading is faster. And it holds 6+1 to start. I still want to put it through its paces before I trust it as a carry gun, and there will be times when I still prefer to have the revolver, but already I can see that the Boberg is going to be a very nice addition to my collection. Once I get into .45 Super power levels, that will really make a difference.
More to come.
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:
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:
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:
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:
Next, the Glock 42 .380acp:
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:
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.
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.
I thought I would share a question I got in email today, and my generalized answer, since it is something which comes up surprisingly often.
I love this data! Would it be possible to fund the testing of additional cartridges? I’m looking for more .XYZ load tests.
Our baseline costs for testing a particular cartridge (out to 18″ barrel length) runs a couple hundred dollars for the barrel blank, then perhaps another hundred to get the smithing work done on it to fit the T/C platform. Then add in the actual cost of ammo, with a minimum of probably 100 rounds (3 shots at each inch of barrel, additional rounds for each ‘real world gun’, and then another box or two for repeats when something goes buggy with the data). So realistically, to actually fund a test sequence is a minimum of close to $500 for just one ammo load, and another $100+ for each additional ammo. Add in equipment and site hosting costs, and that’s how we’ve managed to spend something on the order of $50k so far for the data on the site. Which doesn’t include any labor costs, of course, since we only do this because we were curious about the data, not as any kind of testing business.
Which is to say that we’re always happy to accept donations and feedback on what sorts of things people would like to see, but as of yet no one has been willing to step up and finance an entire test sequence for something we’re curious enough to want to sink the time into. (Each test sequence takes 100 man-hours of labor or more … from our vacation/weekend/fun time.)
We don’t *currently* have any plans to retest the .XYZ anytime soon. Actually, we don’t have plans to do any specific tests at all in the near term. But we are looking at revisiting most or all of the cartridges tested to date at some point in the future, just to see how ammo quality/selection may have changed over a 5 or 10 year period.
A friend dropped me a note, after looking over my previous experiments with putting .460 Rowland load power into .45 ACP cases, and asked a fairly simple question: Do you think that the case walls are actually thicker in the .460 Rowland?
Now, I have read several articles over the years which mentioned that the .460 Rowland cases were “stronger” with others saying that the cases were “thicker”. In fact, in the blog post cited above, I myself said:
Even shooting them in a gun designed to handle .460 Rowland power was risky, since the .45 ACP cases do not have the same strength as the .460 Rowland cases.
But is that actually true?
Good question. My Lyman 49th Edition Reloading Handbook doesn’t give case wall thickness for the .45ACP, and doesn’t list .460 Rowland at all. A quick check online also didn’t turn up any case wall thickness specs for either cartridge. As noted above, there are some gun writers out there who claim that the .460 Rowland case has thicker walls “for strength” but this claim isn’t made on the 460Rowland.com site that I could find.
So, being the data-curious guy that I am, I decided to just take some measurements and see what I found.
The only .460 cases I have are all Starline brass (I ordered 500 from them, and supplemented with other brass from factory Buffalo Bore ammunition – again, all of it marked as Starline), and I went through and checked a bunch with my simple calipers. Now, those calipers aren’t the pincer type, just the standard parallel-jaws type, so I only trust the measurements to about halfway down the case. And they all fell into a range of wall thickness from 0.0012″ to 0.0014″.
Doing the same measurement with ten different ‘marked’ sets of .45 ACP brass I also have readily to hand, the results were almost identical, with the vast majority of cases being 0.0012″ or a thousandth of an inch on either side of that. It didn’t matter whether the cases were nickle-plated or marked “+P”. The ‘marked’ brass was as follows:
- Cor Bon +P
- Federal Brass
- Federal Nickle
- Speer Brass
- Speer Nickle
And when you stop to think about it, there would be no reason or way for the case walls to be significantly thicker in the .460 Rowland cartridge, and still allow you to use standard .45 ACP reloading components and dies. If the case walls were substantially thicker, then you’d have to have slightly smaller bullets, if nothing else, and would probably need a different resizing die and/or neck expanding die.
Also, when I was conducting those experiments last summer, I didn’t note any differences in how the .45 ACP cases looked or functioned (when being reloaded) after being shot with .460 Rowland power loads.
My conclusion? That the .460 Rowland cases are no thicker walled than .45 ACP cases. They may still be “stronger”, if there is some metallurgical difference, but I doubt it. The real difference is in whether or not the chamber of the gun in which the ammo is being used is strong enough to handle the much-greater pressure of the .460 Rowland loads. Because remember, the maximum pressure for standard .45 ACP is just 21,000 PSI, and 23,000 PSI for .45 ACP +P — while the .460 Rowland cartridge reaches pressures of 40,000 PSI.
Of course, there are additional factors to consider (like recoil and timing) with the .460 Rowland cartridge, so you can’t just make the chamber of the gun stronger and then start putting those kinds of loads into .45 ACP cases. And you really wouldn’t want to accidentally put such power into a ‘normal’ .45 ACP gun — that could lead to catastrophic failure of the gun, and result in serious injury or death. So it still makes ALL KINDS OF SENSE to only load the longer .460 Rowland cases with that much power.
- .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
- 6.5 Swedish
- 9mm Luger (9×19)
- 9mm Mak
- 9mm Ultra
- Boberg Arms
- General Procedures
- Shotgun ballistics