Yup. I know of someone who is a coroner. He said that depending on how many are in a body he can tell you without looking at the holes the caliber used. The more holes the smaller the caliber and the number of holes in relation to the change in caliber rises logarithmically.
Oh yeah! I agree: 30-06 and .308 just rocks
I don't think you're right here. I believe it's a fairly strict restriction.
Grenades

Btw, you think I"m joking? Had an interesting conversation with someone who's father passed away couple years ago. He retired from the army as a general. Anyways, as the story goes, when they were clearing out his house, they found a grenade tucked in underneath the bed. He was the old school cold war soldier: believed in always being prepared and having a gun and a grenade handy. Even after he retired

Now that's what I call preparadness. He also left behind a really nice 1911 collection. He joined up for WWII and from the sounds of it had one from each campaign till he retired (and he served in Korea and Vietnam too).