I have an MP .729 525gr mold that is a hollow base Diablo style. I have the same style NOE/Lyman 500gr mold but in .680. I have a couple of different sabot/wads I can use with it.
I'm not exactly sure what/how I'm supposed to load this full-bore slug. I have a couple of rifle-barreled shotguns, a few more smoothbores, and even more rifled chokes...I could use some guidance.