12" Barrel

Talk about the AR15 style rifles chambered in 450 Bushmaster.

Moderator: MudBug

Re: 12" Barrel

Postby warthog984 » Thu Dec 13, 2018 6:01 am

Al in Mi wrote:had this saved from a article I read awhile back on Windham's 9" pistol. https://www.americanrifleman.org/articl ... 15-pistol/

Image


as far as your 45acp reading Hoot, that might be all you can get from 6-8gr of powder ;)


Interesting article. I ordered that upper last week. I called Windham and they sent me a ballistic chart for their 9" barrel using Hornady 250gr FTX. They have the muzzle velocity at 2000 FPS. Seems way off compared to the American Rifleman review.
warthog984
 
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