Ballistics by the inch

Get a grip. Or make one.

A couple of weeks ago I posted about finishing a Liegi Derringer kit, then doing the laser work to customize the grips. It turned out well enough, so I decided to finish and laser a second kit, to use as a door prize for a black powder workshop I’m doing at the annual meeting of the Liberal Gun Club this fall in Las Vegas.

All went well until the time came to mount the grip to the receiver. The top mounting screw went in fine, after drilling a pilot hole. But the bottom one broke loose as I was tightening it. I took the top screw back out so I could see what the problem was. This is what I saw:

Almost looks like a tiny wooden shoe from this angle, doesn’t it?

See right there in the center? That’s where the screw broke loose, knocking out the adjacent piece of wood. Just a fluke of the grain on this piece of wood.

There are several ways you can repair a problem like this. You can use a longer screw. You can fill in the broken material with a good wood epoxy, then remount the screw. You can change the hardware to relocate the screw. There are probably other good, simple solutions, but I’m not a wood-worker.

So of course I figured that I’d do the most difficult thing: carve a replacement grip out of another piece of walnut.

See, we had to take down a big walnut in our yard some years back. Most of the big pieces of good wood went to friends who are skilled wood-workers. The rest became firewood. We still have some of the firewood, so I picked out a piece and chopped it roughly to size:

That’s a funny-lookin’ grip.

Next, I spent a couple of hours with a drill, a heavy wood rasp, and a Dremel, and got the new grip down to an approximate form:

Roughed out.

Then it was a matter of more detailed carving, to get closer to the shape of the original grip, and to make room for the hardware of the receiver:

Still a little bulky …

I had decided to make this grip a little more robust than the original, since I didn’t trust my skills to not over-do it and make a fragile grip. But I didn’t want it TOO big:

Pleased to meet you.

Once I was satisfied with the shape of the grip, it was time to laser the design into the sides. To get the designs positioned properly, I used some reference tape:

I did the laser work, then stained the grip and polished it slightly. Assembly went just fine, and the mounting screws set without a problem. Here’s the finished product:

I’m pretty happy with the finished product, and hope whomever wins it will enjoy shooting it.

Jim Downey

August 4, 2022 Posted by | Anecdotes, black powder | , , , , , , , , , | 1 Comment

That takes balls, Part 2: rebound!

Last week I posted about a little Liegi derringer that I finished and did a laser design on. Well, over the weekend I got together with the BBTI gang and, among other things, had a chance to shoot and chrono the little gun.

Here’s a short slo-mo vid of shooting the Liegi:

As expected, shooting the Liegi was simplicity itself: pour in some black powder (FFFg) until the small chamber was filled, set a .451 ball on top, screw down the barrel, then add a #11 cap and it was ready to go.

Because I wanted to chrono the gun, we were shooting it from where we had the chrono set-up, about 15 yards from the bullet trap:

The Labradar system works well, once you get the hang of using it.

There was a fair amount of variation in the multiple shots we chrono’d, ranging from about 380fps to 600+fps, but the average was about 500fps. That gives the 139gr lead ball about 80ft-pounds of muzzle energy — not a lot, but more than I would care to be shot with.

Well, more than I would care to be shot with directly, anyway. Because one of the shots I chronographed bounced off the surrounding wall of the bullet trap, and ricocheted right back and hit me in the leg. It didn’t hurt at all, just tapped me in the thigh. I picked the bullet up off the ground where it landed. Here it is next to another fresh ball:

Note that it is darkened from the combustion, and there’s a slight indentation where it was seated down on the powder chamber of the gun. Here’s a pic that better shows the flattened profile of the bullet:

And here’s what it looks like on the side that hit the building:

And yeah, that means that I missed hitting the opening of the bullet trap (covering door is about 3×6′). I would be embarrassed about that with most handguns at 15 yards, but certainly not with this thing, which was intended to be used at bad-breath distance.

Like I said: fun little project. Now I’ll add it into my collection of black powder guns for regular use.

Jim Downey

July 25, 2022 Posted by | Anecdotes, black powder, Data | , , , , , , , | 1 Comment

That takes balls.

I recently picked up a little Pedersoli Liegi Derriger kit. One of the other BBTI guys has one of these things, and I’ve always considered it a cool little piece of firearms history. Cap & ball firearms technology came along in the early part of the 1800s, supplanting flintlocks and earlier ignition systems. The Liegi design was very popular as a basic pocket/boot/muff small handgun, because it was relatively easy to load and carry, and lethal at close range.

The interesting thing about the Liegi is the loading system: you unscrew the barrel, load the powder charge in the chamber, place a round bullet on top of the powder, then screw the barrel back into place. It’s simple and fairly foolproof, and doesn’t even require a powder measure — you just fill the chamber with black powder and it’s the correct amount. Once the gun is loaded and the barrel is in place, you draw the hammer to half-cock, place a cap on the nipple, and the gun is ready. Here’s a short video showing all the steps:

In addition to doing the minor prep work on the walnut stock of the gun, I wanted to add some laser engraving on the side panels. Because it amused me, I decided to use the same basic pattern as I had used for the grips of a very modern handgun, my Customized Timberwolf G21. Here’s a pic of the finished product, and on the next page are pics of the process and comparisons to other small handguns I have:

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July 17, 2022 Posted by | .22, .357 Magnum, .38 Special, black powder, Boberg Arms | , , , , , , , , , , , , , , , , , , | 5 Comments

Spinning wheel got to go round.*

I was surprised when one of the other BBTI guys said that he had found a reproduction wheellock on Gunbroker recently, and that it wasn’t even horribly expensive. This one:

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Wheellock with Diablo double-barrel pistol.

I was surprised, because there aren’t many reproduction wheellocks out there that I was aware of. It’s a quirky firearm design from the 16th century (Ian from Forgotten Weapons has an excellent primer on Wheellock history and operation in this video), which was superseded by reliable & cheaper flintlocks, and not too many people are familiar with them. But it seems that a firm by the name of Mendi was producing them in Spain in the 1980s. This one is stamped along the top of the barrel “Jacobi Iserlohn”, which is a firm selling historical firearms in Iserlohn, Germany. You might be able to make out the stamp in this image:

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Jacobi Iserlohn.

We didn’t know much about the gun beyond what was stamped on it — it came with no paperwork or anything (which, being black powder, it didn’t need).  As you can see in the image above, it says that it is “CAL 45”, and a normal .451 lead ball seemed to fit, so …

So we figured we’d try and figure it out and shoot it, of course. The first thing was to check the bore, see if the mechanism worked, etc. Most things checked out fine, though it looked like someone had substituted welding rods clamped between a piece of thick lead sheet for the historical pyrite used to generate sparks. See for yourself:

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Welding rod?

Which would clamp in this (called the ‘dog’):

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We adjusted the rods so they were equal length and extended far enough to engage the spinning wheel of the mechanism when the dog was lowered. So far, so good.

Next was to test the wheel mechanism. The way a wheellock works is that there’s a spring inside the stock, attached to the inside of the wheel usually by a chain or strap. Using a suitable crank (we didn’t have one that came with the gun, so we used a simple adjustable wrench), you crank the wheel until a ratchet inside locks it into place. We discovered that this gun only needed to be cranked about half a turn before the ratchet clicked. When you pull the trigger the ratchet is released, and the wheel spins.

We tried that, and it seemed to work.

OK, time to load the thing. We elected to start with a mild load typical for other black powder handguns we have in .44/.45 — 30gr of fffg. The lead ball seemed to fit tightly enough into the bore that we went without a patch. All of that went smoothly.

Last was to put some powder in the pan and see if we could shoot it. First, we cranked the wheel into place. Then we put some powder beside where the wheel was, next to the touch-hole. And gave it a try:

Remember, we had no idea what to expect.

At least we got sparks. Just sparks. The powder in the pan failed to ignite. We considered the matter, and decided that we had been too stingy with the powder, that it needed to more or less fill the pan all around where the wheel protruded.

The result:

Excellent! It fired! It hit the target! It didn’t blow up and kill us! Yay!

So each of us had a go:

That last one’s me. And let me share what it felt like.

Mostly, like shooting any similarly sized/powerful black powder handgun, with the gentle push of black powder. But when you pulled the trigger, you could feel a little bit of torque as the wheel released and spun for a moment. It was different than either a flintlock or cap & ball handgun, in that regard. And the delay between pulling the trigger and ignition was about what it’s like with a flintlock, perhaps a little longer.

All in all, it was pretty cool. And it wasn’t something I expected to ever have a chance to actually try, since most of the wheellocks I was aware of were either 300+ year antiques or fairly high-end (and rare) custom reproductions. Needless to say, if you do get a chance to try one of these things, definitely do it.

Jim Downey

* of course.

(Cross posted to my personal blog.)

September 5, 2020 Posted by | black powder, Discussion. | , , , , , , , , , , , , | Leave a comment