Hi guys. I'm having a velocity issue with my reloads.... 120 SST, SSA brass, CCI #41 primers and AA2200 powder. Accurates reloading info calls 27.2 the max charge. 27.2 grain gave me a pathetic average velocity of 2,405 FPS (the factory ammo chrono'd an avg of 2,569). I went all the way up to 27.5 grains and only averaged 2,486 FPS (no pressure signs). I matched the factory ogive measurement for test 1, then loaded longer and shorter. I cannot break the 2,500 FPS barrier. Any thoughts??