I make my own ammo so there's no shortage...I have a lot of ammo for all of my guns, I'm a prepper.
IPSC is still regulated by range officers but it's dynamic and not static shooting off a line. That shit sucks. I also do this same thing with long range rifles which is also fun. Long range shooting is more my thing to be honest, but one need skills in all areas right?
Good luck with it.