I`m asked this alot. The other day a head swat team leader ask me if he could shoot 480 Ruger ammo in his 50AE Desert Eagle. The best I have been asked, I just bought a lever action 44 mag Marlin, can`t afford that ammo but I found some 38 special ammo cheap down the road, can I shoot it? Or how about his, this man was teaching his wife how to shoot his shotgun (12ga) and couldn`t figure out why his shells fell through the barrel, he was using 410 shells. He was ex cop. What is wrong with people? Stupid I guess. Seems like nobody anymore reads any gun and/or ammo books.