In a pinch, drill a hole in a wood block as close to thebarrel diameteras possible, hardwood preferably. Cut in half to create two halves of the hole to create a clamp. Clamp the block in the vice or a hydraulic press and its as close to a barrel vise as it gets.

Originally Posted by BrentD

I would not buy something that runs on any kind of primer given the possibility of primer shortages and even regulations. In fact, why not buy a flintlock? Really. Rocks aren't going away anytime soon.