I just bought a barrell for my Thompson Encore in .300 win mag. I am looking for a good load to work up for it. I have heard good things about Sierra bullets. I am thinking of something in their 190g. HPBT MK's. That is what I have thought of so far!! Any help on anything else for it would be greatly appreciated!! Especially for those who have done alot of experimenting with this caliber. Thanks again!!!