I purchased a new M12 BR (dual port) rifle to shoot F Class style and had it rebarreled to .284 Winchester. Now I find out that to really be competitive I need to load 4 or 5 grains above max (H4831 SC) using Berger 180 VLD's to get to 2800 fps. And I have been told that the action will not hold up to the pressure? Anyone tell me if I made a serious and costly mistake going with Savage?