I have been compressing powder in my shot shell loads in my 45 colt to get more shot per load. It has been said compressed loads with pistol powder is not safe. I load my shot shells with trimmed .410 shot cups some then some with an over powder wad and a 200 cast bullet after the shot. I stopped using Speers when the cost went to .40 cents each. I guess I am a tightwad but? What do you think about compressed pistol powder?