Squaregrouper
Kragaphile
I took my new .300BO 8.5" PSA upper out today. I put it on to a new lower and an existing buffer tube w/Sig Brace. The buffer assy. functioned flawlessly on a 5.56 pistol that is now a SBR.
Anyway, I have a few questions and a problem:
1- I fired one 30rd mag and noticed significant "brass dust" on the face of the shell deflector, especially for only shooting 30rds. When I collected my brass, I noticed the case neck's tips were all bent inward. I believe the brass was hitting the shell deflector with enough force to damage the brass.
All brass was landing around 5:00, ~6' away. I have never had this issue with 5.56 AR's. Should I get a heavier buffer or spring to solve the "problem"?
2- After the last round, the BCG locked back and the CH was flopping around. I was able to (safely) drive the barrel tip into the bench and the BCG released and appears normal. I took it down and found nothing out of the ordinary.
I figured I should stop shooting and start asking questions. Google ain't cutting it and MDS tends to provide good answers/solutions.
Anyway, I have a few questions and a problem:
1- I fired one 30rd mag and noticed significant "brass dust" on the face of the shell deflector, especially for only shooting 30rds. When I collected my brass, I noticed the case neck's tips were all bent inward. I believe the brass was hitting the shell deflector with enough force to damage the brass.
All brass was landing around 5:00, ~6' away. I have never had this issue with 5.56 AR's. Should I get a heavier buffer or spring to solve the "problem"?
2- After the last round, the BCG locked back and the CH was flopping around. I was able to (safely) drive the barrel tip into the bench and the BCG released and appears normal. I took it down and found nothing out of the ordinary.
I figured I should stop shooting and start asking questions. Google ain't cutting it and MDS tends to provide good answers/solutions.