I assume there must be a better mousetrap than a bent Q-tip? Recommendations?
Otis 8" cleaning cable.
Screw onto the cleaning cable a bronze brush that loosely fits in the chamber.
wrap a patch of OOOO steel wool around the bronze brush so that the fit in the chamber is snug.
Chuck the free end of the Otis cleaning cable to a portable drill motor.
Giddy up.
By using a flexible cable, the tool described above can not only clean and polish rear access chambers i.e. bolt actions and break open single loaders but autoloaders and pumps as well.