[Fenris6]

Where in the world did you get this training? F-Troop?

29 Palms CA. United States Marine Corps. :)

Now this is bugging me - there's some round out there that is prohibited for use on human targets, but I can't recall it. Can't be the 50 cal b/c snipers use it. Its got to be the 25mm AP. Anyone remember?

[sonofatpatcher2]

The Geneva Convention outlawed dum-dum bullets. They were the big bug-a-boo a hundred years ago and nations were only to use full metal jackets rounds.

3rd Recon Bn 67-69

[camas]

maybe it was the ammo you remember. hollow point is a no no and wooden bullets are outlawed too.

[Drammach]

Now this is bugging me - there's some round out there that is prohibited for use on human targets, but I can't recall it.

You may be thinking along these lines...
Explosive rounds, and "tracer" or phosphorus rounds are relegated to "non personnel" use.. or banned for use against troops.
When I say "explosive" rounds, I refer to "dum-dum" and, I think, hollow-point type rounds used in small arms.
This could include specialty rounds like mercury-tips, etc.. but only as it applies to pistols, rifles, and automatic weapons..

"Explosive" does not apply of course to larger, crew-served weapons, such as howitzers and artillery, although Geneva Conventions, IIRC, still placed restrictions on phosphorus rounds, and of course, gas rounds, like mustard gas or other blister agents and nerve agents.