Tooling up to Face Clairvoyant Rodents

December 23rd, 2024

I Need a Rifle That Fires Hungry Cats

I do not understand how the universe works.

I took a couple of my .22’s and sighted them in for squirrel work. I even put a better trigger in one of them. I fixed them up so they’re accurate enough for squirrels that have the audacity to show up in my yard.

Since then, I have not had one good shooting solution on a squirrel.

I like that term. “Shooting solution.” Like I’m stalking Jap carriers in the Bungo Straits.

The squirrels have vanished. Except for the ones that prance around and taunt me from locations where I would rather not shoot. I don’t want to shoot toward my neighbor’s house. Naturally, they get between my house and his and form Soul Train lines.

Why is the world like this? Why am I not rewarded for my efforts?

I got myself a silencer, and I am enjoying using it with my Ruger 10/22. It’s still very loud, but I am assured it’s not loud enough to do any damage to my ears.

I wish I had a liberal silencer. The kind people like Joy Behar and Rosie O’Donnell think exist. The ones that make a sound like “FFTT. FFTT,” when you shoot. So quiet they don’t even wake up the cat.

For that matter, I wish I had liberal guns. The ones liberal gun-haters use in movies. You plug a 300-pound man in the gut, and the impact lifts him off his feet and carries him through a convenient window.

These guns also keep shooting when the known capacities of their magazines have been exceeded, and they let you do things like shooting a twig off a tree from a thousand yards, offhand.

Where are these guns? They could save me a lot on ammunition. I could shoot 31 real rounds and then keep firing from an empty magazine.

I like my silencer, but it only screws onto one gun. The others aren’t threaded. Now I have to decide whether to thread them (some of them) myself or take them to a gunsmith.

I am supposedly a machinist. I have a 16×40 lathe. It’s long enough to hold just about any rifle barrel between centers. You would think I could thread a barrel, but it looks like it’s a little complicated.

You chuck your barrel up, you turn on the power, you put a shoulder on it, you thread it, and you’re done, right? Well, not necessarily, although I think some bubbas do it that way.

Your silencer’s bullet path has to be concentric with the barrel’s bore, because if it’s not, the bullets can hit the silencer on the way out. You have to be within a few thousandths of concentricity.

This means you can’t just center the barrel on the lathe. You have to center the bore, and when that’s done, the barrel itself may be running eccentrically. Bores aren’t always in the centers of barrels, believe it or not. They wander around in there.

No problem, right? You just jam a live center in the barrel’s muzzle and hold the breech end with a 4-jaw chuck. Well, it looks like it doesn’t work that way. I’m not sure why not, but evidently this may not give you concentricity. You need a thing called a range rod that goes into the muzzle. I haven’t been able to figure out what a range rod is yet, but they cost a hundred bucks or more. That part, I figured out.

I am considering chopping up my Savage A22. This is a really neat .22 semiauto. It has a Savage Accu-trigger, which is about as good as you can do without going to an expensive aftermarket part. It’s easy to disassemble and clean. It has a Savage barrel, and that’s one thing Savage does really well. It’s a great gun. But the barrel is not threaded.

I would like to thread it for the squirrels. I owe it to them.

I also want to cut it shorter. My silencer is something like 6″ long, and it will make the gun unwieldy. It’s already pretty unwieldy. The factory barrel is 22″ long, which seems nutty to me.

I read up, and I learned that there is no point in making a .22 barrel longer than about 16.5″. This is where you get peak velocity. As you add inches, the speed drops. So why are so many guns so long? I have read that it’s all about sight radius.

When you use iron or open sights, a longer distance between the rear sight and the front sight makes the gun easier to aim accurately. Supposedly.

Is this actually true? I have my doubts. Why would it be?

A longer radius means a heavier barrel, and that means the barrel will shake more when you shoulder the gun.

It can’t be because the same angular error at the point of discharge results in a smaller linear error downrange. That’s obviously wrong.

Gun precision is measured in degrees or milrads. Units of angular displacement. If your gun keeps every shot within 1.05″ at 100 yards, that’s one minute of angle, or 1/60 of a degree. If you move your gun up 10° from a given point of aim, the change in the point of aim, measured in linear units downrange, will be the same regardless of how short your barrel is.

My understanding is that the idea is that the same LINEAR error at the shooter’s end will produce a smaller error downrange with a long sight radius, and that is true, but that means you’re making a bigger angular error as you aim. Why would a short barrel cause that?

When I use a scope at 100 or 1000 yards, I have a sight radius of a few inches. It’s inside the scope. I can still shot 1/2-MOA at 100 yards. The nature of the sight makes it easy to see how far off-target I am, so I can withhold fire until I get it right. Why can’t I do that with open sights? Seems to be it’s just a matter of tightening them up. Instead of a front sight as wide as a paper match, use one half as wide.

Am I wrong? I can’t see the mistake.

It’s not easy to shoot a snubnose revolver accurately, but is that because they’re not built to be precise? No. It’s because they have huge, blocky sights which take extra skill to work with. When your sights cover up half of what you’re shooting at, you need to get used to them and figure out where your bullets are going to land.

I just saw a video of a guy shooting a snubnose at 50 yards, and he shot into an area the size of a canteloupe. That would be fantastic shooting with any pistol. I’m a great pistol shot, but this guy is on another planet.

A long barrel doesn’t do more to stabilize a bullet than a short one. It may seem like it would, but it doesn’t. The only thing a bullet remembers when it leaves a gun is the last millimeter of the barrel. Because a bullet is in contact with the barrel’s lands all the way down, it’s not like the lands a foot back from the muzzle have any influence on the bullet’s flight. If the front of the muzzle is in good shape, and the barrel isn’t worn out, the bullet will fly true. If it has a tiny imperfection, the rounds will go all over, even if the other 99.95% of the barrel is perfect.

Barrel rigidity is important to accuracy. Gun barrels hum as bullets move out. They experience waves along their lengths. The shorter or thicker a barrel is, the smaller the amplitude of the waves will be. A shorter barrel should actually be more accurate than a long one as long as the velocity is the same and the bullet twist rate is just as good.

I think putting a 22″ barrel on a .22 rifle is a mistake. I’ll bet they do it mostly for marketing reasons. A long barrel looks better, and people think they’re more accurate. And people expect higher velocities from them.

A .22 charge is pretty weak, so by the time a bullet moves 16″ down the barrel, it has exhausted whatever energy the powder provided. It’s not like a bunch of unused gas will follow it out of the muzzle instead of providing extra speed.

I’m thinking I’ll cut my barrel down to 16.25″, have it threaded, and have the front sight reattached. The gun will be lighter and easier to aim with a scope, and it won’t be 4 feet long with a silencer.

I don’t plan to use the front sight, but I might decide to try it some day, or maybe I’ll find an aftermarket peep sight set I like. Might as well keep my options open.

The gap in the rear sight might have to be widened by a third or so. I don’t know. Or I could grind the front sight down by a third.

I don’t know if an open front sight would be tall enough to be seen over a silencer.

In any case, it would be a pretty neat rifle with these changes. If it didn’t work out, I could probably get a new barrel for a hundred bucks.

Doesn’t do me much good if the squirrels keep reading my mind, however.

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