Ar15 pistol

Unconventional said

According to my book the Difference between Muzzle velocities between a 26" and a 14" tube is right at 500fps on the same load. Using a faster pistol powder might bump it up a little bit. 2400fps on that short tube is still pretty respectable. I miss my 22-250 :(

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Yea I read somewhere that they were getting close to 2500 with a 55g factory round out of a 10 inch and close to 2200 out of a 7 inch with much ammo. Not to bad imo. I haven't decided yet but I'm kinda leaning towards the 10 in a 223 wylde with a carbine gas system so I can run a mil spec 3 ounce buffer.