You didn't mention what your intended needs were for the warmer loads, hunting??? 50 FPS doesn't amount to much for me, bullet selection would matter much more. You also never said how much "worse" the bigger groups were, does that really matter? I'm on board with trying other powders & at further ranges. 2400 Was the first powder that came to mind. Shoot a gun loose & just buy another??? I don't have that kinda $, the need or desire to shoot THAT MANY warm loads, DO YOU?