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SBR opinions

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Old 05-31-2012, 05:34 PM   #21
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Originally Posted by AgentTikki View Post
I'm not really agreeing with the numbers you are posting here.
Optimally fragmentation occurs at velocities above 2700 fps.
Muzzle velocity for M193 55 gr fmj is in the 3200 fps range with a full length barrel.

430 fps is a really fast paintball.
250-1000+ for pellet guns.
230 gr fmj .45 acp shoots in about the 900 to 1000 fps depending on barrel length.

Um here you go....

Once you go under 2700fps, fragmentation gets really spotty so for the most part you are just punching holes. But much deeper holes than a .22 magnum.
I think I misphrased it 430 fps less out of a 7.5" barrel than a 20" barrel and 600 fps less than a 20" barrel at 80 meters . Guess I got carried away and left a few words out .
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