Corbon used to load a 115gr +P+ .38sp that did over 1400fps in a 4" revolver.
They also loaded a +P 110gr .38sp that did over 1410fps in a snubby...
Those Underwoods are hot, but it's been done before in 9mm and .38sp.
"You need a shotgun, man, it's got a good spread.
It's easy to load, doesn't have a lot of working parts...ya ain't gotta be that accurate, the further away you are the more **** you hit."