Spent some time at the range yesterday with H20Hunter's chrony. For what it's worth, with 100g of Select RS powder the chrony told the following tale at 10 yards out of my Green Mountain LRH .50 cal barrel-
370 grain TC MaxiBall - 1480 fps
460 grain "No Excuses" Maxi - 1432 fps
I was expecting much more of a difference. Might have seen a wider spread with more powder, but at 100 gr both maxi's are very accurate out to 100 yards, so I'm not looking to change it up too much. Anybody else have similar/far different numbers?