abrasives

Updated: May 26, 2025

However, due to pitting, the presence of dust, other abrasives, or to accumulation, metal fouling may occur in clearly visible flakes or patches of much greater thickness, much more difficult to remove. A convenient method is to insert the muzzle of the rifle into the can containing the soda solution and, with the cleaning rod inserted from the breech, pump the barrel full a few times.

United States. War Dept. - Manual for Noncommissioned Officers and Privates of Infantry of the Army of the United States, 1917 : To be used by Engineer companies (dismounted) and Coast Artillery companies for Infantry instruction and training