"mouse gun" velocities out of longer bbls.


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ToxicSports
October 14, 2004, 03:26 AM
Hello all,

I am searching for some information. I have both a .25 and .32 acp that I carry CCW. I have a crapload of ammo sitting around and I was wondering what type of velocities I could get with these rounds out of 16", 18" and 20" barrels?

Also, just recently I have been interested in purchasing a 7.62x25 caliber handgun. I have read that this round will travel around 1600 FPS out of a 10" barrel. Does anyone know what the velocity of this round would be out of--again-- a 16", 18" and 20" length bbl?

I know that the velocities, of any of these rounds, aren't going to be something to write home about but I was just pondering the thought.

Maybe a good subsonic round for close quarter varmint hunting or with these calibers is that a SUB-Subsonic round?

Thanks in advance for any feedback.

TS

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Preacherman
October 14, 2004, 03:29 AM
I think it would not give you much gain at all. The powder capacity of those cases is so small that a longer barrel might give you less velocity due to bullet drag slowing down the projectile when the propellant has fully burned, and the gas pressure drops. .22LR is a good example: top velocities are consistently achieved with a 16" barrel. Much more than this, and muzzle velocity drops off.

cls12vg30
October 14, 2004, 10:12 AM
Yeah a lot of the surplust 7.62x25 Tokarev loads have been clocked up around 1600. Then there's the Magsafes in 7.62x25, which have been clocked between 2200 and 2500 fps.

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