I sold a couple 8 pounders to Dick Wright. Don't know if he shot it up or not.
I used the Aussie H322 lot 90 when I was learning. 27.5grains and a 68 grain Berger. It shot great and I changed nothing regardless of where the match was shot or temp and humidity. I gained a lot of knowledge, different powders, bullets, and changed everything back and forth my second year. My shooting dropped off a great deal my second year. Being stupid and just watching flags and just shooting was best for me.