Has anyone used quickload with light for caliber loads? I am looking to shoot 285 grain moly coated bullets in a 458 Lott. Most loadings don't go below 350 grains. I would prefer to keep pressure under 50,000 PSI ( not CUP ) with 100% case fill +- 5% 23.5 inch barrel 108 grains of water Thanks for any replies. edge.