Which load? Some of the stuff they make is very weak, intentionally so for specific shooting sports. For example, a lot of the AMU stuff is loaded at the absolute lowest power/recoil factor possible and the guns that are used to shoot it have light recoil springs, lightened slides, or both.
They sent me a couple of boxes of ammo to try, which have been sitting in my locker for quite a while. When I get back home I'll give it a shot (pardon the pun) and see how it runs through my M&P9.