When I was shooting the 1000 in PA. I used a 30-338 and I found with that rifle the sierra 190's worked great for me.I used H 4831 and 7828 tried the H 1000 but not good enough..But that was long ago and I am sure there are better powders..I always like to have the case as full as possible....I miss those days....Good luck in your quest....John
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