Saw a girl once in a super low-cut, super-tight top, got one down there from a Sten. You would never believe just a nasty burn from such a little casing!
What has puzzled ME ever since is just HOW did a STEN manage to chuck one in that direction; usually, they are forward and out, at an angle.
Old ammo, I guess, dodgy primers.
Apart from the fact of the burn, it was funny as all get-out!
Brandon club, many years ago, one of Uncle Lew's Stens.
Yes, having FUN was actually LEGAL in this country, once upon a time!
.
As to the Garand, you should try taking pictures of the thing firing at night. I have detailed how to do this previously. The bullet comes out of the barrel at 2800 ft/sec and it is riding on a column of incendescent gas at 52,000 pounds a square inch pressure. The casing HAS to be hot! At night, you can actually photograph the red streak of the case being ejected.
When the brass came out of the Fireflies, it sat and GLOWED on the bottom of the turret; you could see it clearly if it was overcast.
Pressure makes heat... and the more pressure, the more heat.
.