optimum barrel length?

Talk about the AR15 style rifles chambered in 450 Bushmaster.

Moderator: MudBug

Re: optimum barrel length?

Postby Nealmg » Fri Jun 22, 2018 6:47 pm

This link shows hornady 450 bushmaster FTX velocities at different barrel lengths

Very helpful in my barrel purchase decision. I do wonder that, if with a slower burning powder, that the velocity would increase more with barrel length. Apparently it's powder in factory ammo is completely or close to burned at 21 inches?
Nealmg
 
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