When Midway USA was down to six packs, I bought them out. So I shoot a .458 Orange Knight Sabot which I think is nothing more then a MMP. I also cast a 405 FP pure lead .457 projectile that I shoot out of them. I also shoot a Remington .458 405 grain copper coated FP commonly shot in 45/70 governments in the sabots. I am down to a couple packs now, so I will have to get ahold of Del and order some soon.