I believe so, I have never heard of a muzzle velocity min/max. The main thing is old west style guns, no adjustable sights. There was a guy showed up to the last one, he brought the flyer with him, so I would guess he knew on the sight issue. He had adjustable sights, didn't seem to happy when he was told no, even after 3 or 4 people offered loaners. I believe the cartridge shooters vary on their loads, so I would think it would be okay.