Cruzatte
50 Cal.
I've owned several. And ain't none of 'em ever been able to fit into the touch hole on my rifle. So I quit using 'em.smoothshooter said:Don't use one of those sold as a traditional kind that has the twisted square corners made by heating square stock and twisting it before cooling.
They work like a square reamer, and will enlarge your vent hole over time.