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11/17/2007 4:48:21 PM EDT
I have a LMT SBR with a AAC M42K suppressor that runs about 90 rds through before I start to get FTF's.  I'll hit the bolt release and the bolt will not chamber a round, it will barely move. I've been shooting AE .223 55 gr. ammo through it.  I'm thinking the ammo isn't "hot" enough for it.  Any suggestions ?  
11/17/2007 4:53:32 PM EDT
[#1]
IS it dry after 90 rounds? How clean is it before you start? Semi or F/A carrier? Standard buffer or H1/2/3?
11/17/2007 4:59:06 PM EDT
[#2]
I clean my weapons within 30min of returning from the range, Semi-carrier and h3 buffer.  I'm thinking the problem may lie in the ammo/lubrication.
11/17/2007 5:02:02 PM EDT
[#3]

Quoted:
I clean my weapons within 30min of returning from the range, Semi-carrier and h3 buffer.  I'm thinking the problem may lie in the ammo/lubrication.


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