A friend gave me approx 300 rounds of what I believe to be .30 Carbine ammo today. All the boxes say is "7.62mm LC". The head stamps say "LC 52". They look like every picture I've seen of .30 Carbine rounds, I've just never seen or handled this round before. They basically look like taller, skinnier .38s. This could be a huge score for me as I'm waiting on a M1 Carbine from the CMP. Supposedly he has magazines too. Too bad he doesn't have the friggin gun!
EDIT: I added a picture. I put the round in question next to a 9mm for scale.

EDIT: I added a picture. I put the round in question next to a 9mm for scale.