Dewey wool brush cal. 30 to .38 suitable for all Dewey cleaning rods from DM22C... Thread: 8/32 wool brush

Dewey wool mop cal. .30 to .38 suitable for all Dewey cleaning rods from DM22C... Thread: 8/32 Wool mops are particularly suitable for degreasing barrels before shooting or for quickly wiping them down with an appropriate solvent or oil after shooting when there is not enough time for a thorough cleaning immediately. Especially with shotguns, the chambers or the entire barrels can rust quickly otherwise.