1. A gun cleaning patch comprising a gun cleaning cloth; at least one layer of capsules adhesively affixed to one side of said cloth, said capsules having a diameter of from 100 to 1,000 microns and each capsule comprising a gun barrel cleaning solvent, lubricating oil or combination thereof enclosed in a capsule of mineral oil, said capsules being uniformly distributed over the central portion of said cloth, leaving a surrounding portion of the cloth free of capsules; and an overlay member of absorbent material adhesively secured to the said surrounding portion of the cloth and extending continuously over the capsules, the size and shape of said gun cleaning patch being such as to create rupture of said capsules as said patch is forced within a gun barrel by a cleaning rod, whereby said gun barrel treating fluid will be released through said overlay member.