I'm no ballistics expert, but I don't think the bullets would be heavy enough to cycle the action of virtually any semi-automatic or select-fire firearm, and even in a bolt-action rifle they'd be completely impractical to use, since its penetrating capability would be virtually non-existent.

How'd it take you that long? But whatever, I ain't even mad, Predator kicks ass.

I don't know, man. I feel like Tetsuo Shima should be in Carrie White's place.

Okay, I gotcha.

...I still can't believe they named a plane that.

Sorry about that.