Wilson Combat Ultima-Lube II Bore Cleaner 4 oz. Bottle White. Bore Polish contains NO ammonia or synthetics and will not harm metals. Bore Polish will remove copper from the lands and grooves while leaving the embedded copper in the micro fractures of the bore alone. The result is a smooth polished bore which needs no fouling shot to be accurate. Directions: We recommend Wilson Combat Carbon Remover be applied as a first step to remove hard carbon buildup. Shake Well prior to use. Step 1 - To remove stubborn copper or lead buildup use a good copper or bronze brush. For routine cleaning a patch should do. Step 2 - Wet the patch or brush with Bore Polish and apply to the bore using slow complete (full length of bore) even strokes (approximately 20 passes) or until fouling is removed. Specifications for Wilson Combat Ultima-Lube II Bore Polish 4 oz. Bottle: Manufacturer: Wilson Combat Container Volume: 4 oz Features of Wilson Combat Ultima-Lube II Bore Polish 4 oz. Bottle: Removes Copper Polishes the Bore Improves Overall Accuracy Contains No Ammonia Package Contents: Wilson Combat Ultima-Lube II Bore Polish 4 oz. Bottle Wilson Combat 602-4: Ultima-Lube II Bore Cleaner 4 oz. Bottle White