[Shadow9mm]

I stayed away from the 350, odd cartridge. Specs show it takes .357 bullets, but you cant use them in all practicality due to the throat length and brass thickness. It actually uses proprietary .355 bullets, although I have seen some 9mm bullets repurposed for it. However the 9mm bullets may not play nice at 350 legend velocities. That's as far into the weeds as I got before I decided to leave it alone. But that is coming at it from the perspective of someone who wont shoot a gun he cant reload for (22lr and 12ga excluded)

450 made a lot more sense to me. But I still have not gone there. I just did not like the idea of it head spacing on the mouth with that much recoil and not being able to put a roll crimp on it.