I can't find any standard load data for the heavy 300g Lee boolits to fire safely out of my 45 colt Ruger vaquero. Looks like I need to stay under 20,000psi...closer to 14,000. I have trailboss,w296, lil gun, and h110 powders to try. I made tons of Lee 300g PC GC boolits and would like to be able to use them but I can't find any load data for these big boolits. If it's not recommended I'll have to order a Lee 255g mold.