I have made a proto type of a shot load using brass from the 30-06 family, the shell functions in my 1911, question is the star crimping of the cartridge, the metal there is very thick, will it open OK on firing without any undo pressures, I'm thinking of loading with 5 or 6grs of b-eye with a card over the powder and fill the case with #8 or 9 shot, the star crimp should pack the shot quite firm. Hope I've made myself clear, any suggestions would be appreaciated. Thanks in advance for any help.