GSPKurt
Member
I'm trying to get 147 gr. subs to cycle in an M&P 2.0 with a Silencerco Omega. Load is 3.5 gn. of TiteGroup, CCI primer. Max load is 3.6 gn. Went to an 11# recoil spring, and almost fixed it. Getting about 75% cycle rate. As far as I know, no one makes a 10# recoil spring. Ideas, please? Different powder?