Montana X-Treme Bore Conditioner is a lubricant that was formulated to increase extreme accuracy in precision match-grade barrels. It is a highly refined low residue oil that has been designed to eliminate the factors that cause oil to gum and congeal. Regular use after a thorough cleaning will reduce copper buildup and increase accuracy due to reduced fouling in factory and match grade barrels. Helps eliminate the fouling shot typically required with a clean barrel. Excellent for reducing sabot fouling in muzzleloaders. CONTAINS NO PTFE SILICONES or SYNTHETICS that are known to leave residue and affect accuracy.