Originally Posted by uv_halo
Unfortunately, this is very unlikely to happen (in the U.S. anyways, not sure about Canada, while I believe Japan and the EU specify energy). A lot of folks hoped that .50 rounds would be able to be fired at a higher velocity but, they weren't / aren't. The way I understand it, here in the U.S. all of the safety recommendations (by ASTM) and insurance requirements are written around FPS and not Joules/ftLbs/etc.
Ballz! That really throws a wrench in my plan lol. Hope things are different here in Canada