The gauge will make a difference in powder selection. In 12 ga. I like Nitro 100. It also makes nice low pressure loads for my older guns. Cost is low and # of grains required is low, also. Look up Accurate Arms for loads.
P.S. Buy a well-known powder that is inexpensive, uses fewer grains to produce the desired velocity(for less recoil) that will give you the pressures you want and don't sweat the "clean burning" aspect of it. You're surely going to clean a gas auto sometime, anyway.
Every powder ever made "burns cleaner, shoots farther, patterns better, produces shorter shot strings and less recoil than all the rest". It also cures the heartbreak of psoriasis. They can't all be telling the truth, can they?
Last edited by Jim Legg; 08/09/08 10:21 PM.
