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1/25/2018 7:38:29 AM
Posted: 3/12/2006 5:16:53 AM EST
Obviously for supressor purposes. I'd like to use mini-mags, which are about as hot as anything. How short would a barrel need to be?
Link Posted: 3/12/2006 6:34:06 AM EST
think it was like 13" or something like that.


look over at rimfirecentral.com if you dont find the answer here.
Link Posted: 3/12/2006 1:23:50 PM EST
Why do you want to run hot rounds through a shot barrel? Why not just go with standard velocity rounds in the first place. Wouldn't that be like upgrading the engine in your car, and then filling the trunk with sand so you don't speed?
Link Posted: 3/12/2006 1:49:22 PM EST
[Last Edit: 3/12/2006 1:50:19 PM EST by eklikwhoa]

Originally Posted By VinnieBoomBah:
Why do you want to run hot rounds through a shot barrel? Why not just go with standard velocity rounds in the first place. Wouldn't that be like upgrading the engine in your car, and then filling the trunk with sand so you don't speed?




sometimes on semi/auto loading dont cycle with lower/underpowered ammo.


sorta like building up an engine in a truck that cant keep traction cause the rear is too light so you put sand bags in the rear to help it.
Link Posted: 3/13/2006 6:09:30 AM EST
It takes from 5” to 7” of barrel to get a hi-speed rounds supersonic.
Link Posted: 3/14/2006 10:30:52 AM EST
Hmm, I always thought it was 2"
Link Posted: 3/14/2006 5:19:07 PM EST
Mini-Mags stay subsonic in my 3.5" Walther P22 but I am told they will go supersonic in the 5" barreled version.
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