Lee D: Nope, never saw one explode. Have seen lots of bolts get locked up tight due to brass failures or other types of ammo problems but never saw a rifle explode. I have seen brass failures where, most often, the head separates from the rest of the case. I saw a 03A3 bolt handle break off, but that was after the owner had problems chambering one particular cartridge, then he fired the rifle and when he went to eject the casing, the bolt handle broke off. I once saw a 1917 loaded so hot that the case head flowed/flattened and jammed up the bolt, but we pounded that open. Nope, ain't ne'er seen one explode. Oops, saw a barrel split once but that was due to an obstruction. HTH. Mikey.