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Centerfire Rifles - Semiautomatic or Gas Operated Centerfire rifles, carbines and other gas operated rifles.

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  #1  
Old 01-04-2008, 6:04 PM
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Default .22 CB lr short vs. long for Report

Would there be a difference in a sound between a .22 CB lr short versus a long?

Don't they have the same load? Is the long just to fit magazines so as to work better in semis?

I've heard it said (on the web) that a .22 CB sounds like a loud air rifle, but the CCI .22 CB long that I fired was way louder than that. I think neighbors would think gunshots. I'm wondering if there's anything similar, but quieter.
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Old 01-04-2008, 6:47 PM
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The .22 CB Short can be fired indoors with no hearing protection at all out of a rifle. Found that one out back in the good ole' days when I lived in backwoods PA. And yeah, I'd compare it to a loud CO2-powered air rifle. Piston-powered air rifles are actually louder, I'd say.
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Old 01-04-2008, 8:35 PM
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Originally Posted by McMadCow View Post
The .22 CB Short can be fired indoors with no hearing protection at all out of a rifle. Found that one out back in the good ole' days when I lived in backwoods PA. And yeah, I'd compare it to a loud CO2-powered air rifle. Piston-powered air rifles are actually louder, I'd say.

But have you compared the short to the long in terms of loudness?

I also find that the .22 CCI CB Long doesn't cycle the action on my Buckmark, but it is new so I can understand that.

Do you guys think a .22 CCI CB Long is capable of cycling the action on a Buckmark?
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Old 01-04-2008, 8:48 PM
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cb long and cb short are the same to me the difference being that one of my pump 22s work better with longs there is no way either could cycle a autoloader even with the recoil spring removed
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Old 01-04-2008, 9:04 PM
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Look into Aguila Super Colibris. No powder, primer propelled only. Things like this usually aren't made to cycle semis.
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Old 01-05-2008, 1:36 AM
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Ok, let me go over CBs real quick.

1. Out of a pistol, such as a buckmark (unless it's their rifle conversions) the CB will sound very loud. The CB drops drastically in volume when used from a rifle. To give you an idea, I once had a mouse in my room so I set up a trap. Shot at it with a .22 CB Long and my roommate watching TV in the next room didn't even hear it and the TV was at normal volume as well. I'd say a normal wood hammer makes more noise.

2. Semi-auto firearms will not cycle CBs without modification. I've heard of some people using them in their Rugers and using their support hand to hold the bolt closed when firing, to delay the bolt from opening so all blast travels towards the movel and then cycling each round by hand. There were two interesting posts I saw at RFC a while back where one poster claimed he had skeletonized the entire Ruger bolt to cycle CB Longs and it didn't work still. Another poster said he made a new bolt out of aluminum and it would cycle the CB Longs. The aluminum bolt of course will show much more rapid wear, deforming, battering, etc than the steel counterpart but it's easy enough to machine that new bolts could be made by an experienced machinist in about two hours.

3. Due to the physics behind them, CB Shorts will sound slightly louder than CB Longs. I noticed this phenomenon in my CZ 452 and looked into it further. The quick answer is that since they are firing the same bullet from the same powder source (primer) but the CB Short has less open volume the CB Short actually has a slightly higher pressure when firing. This probably also pushes the CB Short at a slightly higher velocity.

4. The difference between the two is pretty much negligible. The CB Longs were made to function in rifles with magazines better. Buy according to your particular firearm; tube fed use Shorts and if it's magazine fed or if Shorts give you a problem get the Longs.

That's it. Again, out of a pistol CBs are about twice as loud; it will ALWAYS be that way. Take your Buckmark out and shoot one round then take any bolt 22 and fire one round and you will hear the difference. The Super Colibris are essentially the same thing, they use only the primer versus a VERY small pinch of powder but push a lighter bullet as well. Be careful what firearms you use them in as some people report the bullet getting stuck in longer barrels. I believe the manufacture recommends no longer than 20" for CBs. Even a CB has enough to do some firearms damage if the barrel gets clogged so be safe.
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Old 01-05-2008, 11:20 AM
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There's no standard for loads in the less common .22 rounds, or even in .22 LR, for that matter. Every manufacturer is going to load it up a bit differently, with different amounts of powder and even priming compound.

You can compare the powder loads by pulling the bullets, but it's not as easy to compare the primer load except by firing empty cases and comparing before and after weights, which isn't super accurate.

When I was young, CB and BB loads had powder in them, as well as primer, depending on who made them. There are a lot fewer manufacturers now, and you might get more info from the vendors or their websites (mainly Speer/CCI and Aguila).
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