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re: Official AR-15 thread

Posted on 8/18/22 at 3:56 pm to
Posted by SeaPickle
Thibodaux
Member since May 2011
3134 posts
Posted on 8/18/22 at 3:56 pm to
got a question for you guys

I have a .223 Aero precision M4E1 lower and upper, BSF barrel and Fostech LM-BCG

It shoots light out with anything ive run through it but i want to mainly shoot Frontier 68gr BTHP. However when i chamber those rounds the bullet gets pushed into the casing so that i can no longer see the cannrlure.

Feeding any other Frontier 58gr or 72gr FMJ it does not have this issue. I ran 120rds of browning FMJ through it in hopes to break it in. Now about every 1 in 3 68gr BTHP get pushed in.
Any ideas other than it needs a little more wear before the BTHP dont get hung up?
Posted by The Nino
Member since Jan 2010
21567 posts
Posted on 8/18/22 at 4:04 pm to
Strange. Is your barrel .223 Rem
or .223 Wylde? Barrel length?
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