re:safariman
back in the early to mid 60's they had pictures in one of the gun magazines of one of the 45/348's-I dont know how much powder the old boy stoked it with, but it froze the action and discharged all the cartridges in the tube!!!!-just remember the old tube fed under heavy recoil are prone to exciting events!!-dont remember if the shooter was hurt or not, but the rifle was a s---wreck.
people do funny things-I picked up some brass at a shooting range one time, some idiot had shot some 303 Savages in a 303 British-he didn't do this once there was about a box of those 303 Savage's laying there-they looked kinda funny laying there case formed with no neck!!!I guess with some people, if it fits in the chamber.....go ahead and pull the trigger!