I'm trying to run 165 grain bullets subsonic and having a velocity problem. I'm getting 100 + fps changes in velocity 850 to 950. I'm running a 10.5" barrel with 10.5 grains of 1680. running unsuppressed for now and have no problem with cycling after I opened the adjustable gas block 2 turns.
The only reason I'm trying 165's is because I have a bunch on hand, if they won't work i'll just get some 200+ grain. Has anybody had this problem before?
The only reason I'm trying 165's is because I have a bunch on hand, if they won't work i'll just get some 200+ grain. Has anybody had this problem before?