should be a required view for anyone who reloads, plays with surplus firearms and ammo or is paying to shoot a big gun at a "range day".
I have seen a few grenades, Winchester Model 50 with a bulged barrel and cracked bolt from overcharged reloads, shooting handgun silhouette matches, Ruger Super Blackhawks with the top strap blown off them and cylinders split, barrel shot out of the frame on a S&W Model 29 and a barrel split on a 30-30 TC Contender. I have seen a Browning shotgun go full auto into the floor of a duck blind, I have had a customer discharge a .380 pistol in his back jeans pocket and creased his butt cheek standing right next to me. I have seen a 300 Win Mag hangfire and jam the bolt on a Browning X Bolt as well as give the man shooting it a black eye and sore shoulder from a reload and I have had a 36cal blackpowder Navy revolver shoot all the cylinder at once. Stuff goes boom, if it is in your hands when it does, you might get hurt. Surplus ammo stored in a hot warehouse probably does all kinds of weird things to nitro based powders. The damage to his throat and upper chest cavity would have killed him pretty quick had he not had his dad with him and the ride to the ER must have been pretty tense for dad.
He is all the time shooting big bore blasters, sooner or later something is going to go wrong