Stuck case

[MagnumManiac]

I've used a shotgun brush, not sure of size, it was loose in the tin with used brushes, it was definitely not a 12G though.
Others have been 50cal or 45cal.

Cheers.

 

[LoneTraveler]

The cleaning brush thing works best with a new brush. The bristles are nice and straight. And will lock and hold with more pull pressure, When folded back straight.
That is why on a muzzleloader you want to roll a new brush so it won't lock in the barrel at bottom of stroke. And then the horror begins.