What I did on my summer vacation

Wednesday, September 05, 2007 Filed in: Gunsmithing, Revolvers, General gun stuff

Well, that's an easy story: I didn't have a summer vacation! I did, however, take part of Labor Day off and head to the range. (You were wondering why there was no post on Monday? Did you really miss me?)

You see, I don't get to shoot much any more - at least in the sense of being able to sit down, concentrate on one thing, and just enjoy myself. When I go to the range, it's always with a half-dozen client guns, each of which needs to have 50 rounds of test ammo put through it. The order of those days is "get in, get out, get back to work." It's not at all fun, it's work. Seriously. Quit laughing!

Monday was different. I went to the range with a friend and just enjoyed myself. (Okay, I did have a client's gun to test - but that went pretty quickly.) I got a chance to play my favorite game: see how many shots I can place on the 200 meter metallic ram target, using a snub-nose revolver, from standing, shooting double action only. Yes, it can be done, though admittedly a good result is a round or two per cylinder connecting. The rest will generally hit just a tad low, because it's a bit difficult to estimate holdover when the barrel of the gun is obscuring the target.

My friend was shooting a Ruger New Model Single Six with the .22WMR cylinder installed. He is a phenomenal shooter, and has always been unhappy with the groups from this particular gun. At 15 yards it would print patterns of 4 or 5 inches in diameter, no matter what ammo was put through it. The poor performance wasn't limited to this example, either - this was the replacement he purchased for the first example, which would do no better! To say he was disappointed with the Single Six is a massive understatement.

He figured that he couldn't possibly make the situation any worse, so he examined the gun with an eye to figuring out what was wrong. He notice that the barrel crown was slightly off center and out of square (not unusual, sad to say, with Ruger.) He took a 45-degree chamfering cutter and made a deep, properly centered crown on the barrel.

The results were night-and-day. The gun, which formerly produced groups that my shotgun would beat, now puts rounds on target with all the holes touching. At one point, we stood in front of the targets and I said "you know, we really should have kept the old targets so that we could make a before-and-after picture!" Another lost opportunity...

The muzzle crown is a phenomenally important contributor to accuracy in both handguns and rifles. It is the last thing that the bullet touches, and if it is nicked, off center or out of square accuracy will suffer. That's why I closely inspect the crown on every gun that comes in, and if I think that recrowning will help I'll suggest to the client that it be done. It isn't always needed, but it can pay huge dividends when it is!

-=[ Grant ]=-
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