OK. 1 1/8 load of shot wieghs 492.2 grains. In several years of reloading I watch my powder drop wieghts religiously but also knew my shot drop was light. Decided to fix this. Opened up the shot bushing to get drops of 482 to 488 grains (this is with West Coast Magmum). Now running Lawrence magnum and wieghts went to 507 to 512 grains in the same bushing. Is this a product of antimony or shot diameter? Also have several bags of Black Diamond and will test them. What's up.