I've loaded for 28ga, 20ga, 16ga and 12ga for a long time, hunting loads only. Also load for a number of handgun loads for a long time and something I figured out is I don't experiment with loads much at all, powder's are to fast for me to fool with so I only load for loads I have data for. Found with the shotgun's there's simply not much around other than published stuff, same with handguns. With rifles I swap bullet's, powders and primers and case's with no worry's.
