OK I am starting to try to get a new load for a 338-378 weatherby magnum, worked up to 103 grns of H-1000 with the 300 smk, it was chrono at 2872 fps out of 5 shots, I was kinda wanting 2900 so I bumped it up to 103.5 and the speed was actually about 50fps slower with the 3rd one sticking my...