What is a safe fire forming load for 45/75 using FFg and 340gr bullet? Can I fill the case full upto the base of the bullet? By the way, the 45/75 has the same case capacity as the 45/70 government. I do know the 75 part of 45/75 means 75 grains of black powder in the original ole time bp load. My experience in using bp in a brass cartridge is zero. /Chris
