.12's should not be used in anything you intend on taking to a skirmish. I've had 1st hand experience of .12s shatter upon impact on my eye pro and explode into fragments out the end of a barrel due to FPS. DO NOT USE!
Actually just no, if anybody has a bit if chest rig heck even a bit extra padding they probably will feel rain drop than a .12 hitting them. No no no no no