A friend gave me a box of his old used brass. He does not reload, but some years ago had a buddy who did reload, and loaded all the ammo for my friend. The buddy is long since gone, and my friend doesn't reload, so he gave the brass to me, complete with the boxes with the loading data written by his reloading buddy. This man was loading 30-06 with 52.5-53 grains of IMR 4320 with 150 grain spitzers. (this is above the Hodgdon maximum load by a little bit).
All the brass looks to be in good shape, no splits and no indications of head separation, but a few of the cases make me really wonder how he managed to shoot these reloads without any accidents. Four cases are black around the head with the primers completely blown out of the case. They have no splits or failures, but the head is expanded so much they will not go into the shell holder. The specification for the diameter at the bottom of the head is 0.470 and these are all 0.477. The rims are 0.486 (0.473 is the specification. The primer pockets are so large you can drop a primer in the hole and it rattles. My friend shot reloads from his buddy for years, and never had any problems.
I guess some people just live right.