05-18-2011, 03:17 AM
bwaites Wrote:None of the Grendel loads I tried made it through, Including AP 130 grain loads, though I haven't tried the 110 grain AP loads yet. I think velocity has a big part to play in AP penetration.
Yep it is all in the math Bill, E=MV2/450400 (muzzle) but if we determine that we retain enough of that a BB would make it through a plate of 4" thick steel if it were moving at 28K fps
