Maintain your accuracy by keeping your muzzleloader clean! BIRCHWOOD CASEY’s highly effective MUZZLE MAGIC FOAM was developed especially for dissolving blackpowder, blackpowder substitutes and pellet residue. Also recommended for removing corrosive primer residue MUZZLE MAGIC FOAM, provides a superior clean for your barrel, metal parts and bore. Use frequently when firing to prevent loss of accuracy. Water soluble – safe for use with natural and biodegradable patch and bullet lubricants. Handy pump spray spout offers no-spill cleaning.