Reply #36: I figured out a way to clean barrels which cannot be reached by breech...

[SteveM]

In my Model 94 Winchester, I stick a cleaning rod down the barrel (from muzzle) without patch accessory. When the female-threaded end is revealed in the breech, I screw the rod into the plastic patch accessory with patch (wagging the dog), then withdraw the road. Same for brush cleaning. In this way I do not wobble and wear out the crown area of rifling by cleaning from the muzzle.

I hope the erosion/wear is confined to the chamber area. Sometimes it doesn't affect accuracy.