Board Thread:Speculation House/@comment-97.95.183.188-20151028155331/@comment-27144409-20151230045714

Phantomlink959 wrote: It is a .50 caliber, as far as rifles are concerned that is high caliber. 20mm is into artillery, entirely different class of weapon. I actually know of two 20mm "rifles", but one is a WWII anti-tank weapon, and the other is for shooting down helicopters.