I keep hearing about the 300 blackout but don't know anthing about it. What is a standard caliber comparison to it? And are the reloading components still a bit hard to find? Reasonabilly priced? The ammo prices is a major thing that has kept me away from what I'd refer to as a wild-cat chamberings. I've had many in the past and many just seemed to fade away with no access to components after a short time. Always a concern to me, I'd hate to build up something just to end up with no ammo for it, been there done that. If I wanted a club, I'd just cut a branch off a tree otherwise. And that's what you'd end up with, without access to reasonibly priced ammo. I still got a few wid-cat "target clubs " haning on the wall or hiding in the safe. Not very handy to have.