M3 .22 cal shooting Baracuda Match 21grn at 925fps 600mm barrel 1st reg 150 2nd reg 100 have a great tune and is MOA out to 100yds semingly over night a problem arose my first 5 shots start at 880 n build 925 then stay consistent cleaned valve rod hammer spring hammer and plenum all good still problem could this be regulater problem? Any suggestions would be appreciated. Reg pressures rock solid