Thanks for your detailed post. Its funny how I've always been told to use 125 - 130 grain loads for my rifle. By the sounds of it I'd be far better to use a heavier bullet to suit the 11-1 twist. As I previously mentioned I was working on a load with the Hornady A-max 168 grain. From what your saying maybe I'd be better to jump another 10 grains up in bullet weight and see how things pan out from there....
I think for the game load I'll stick with the 150 grain load that I've settled on.