Brownells .458/.45-70 Muzzle Brass Pilot for Bore Lapping

The Brownells .458/.45-70 Muzzle Brass Pilot is a precision-made brass pilot designed to guide bore lapping and barrel finishing tools into the muzzle with proper alignment. Machined from brass to prevent damage to the rifling and crown, it ensures centered, consistent tool entry. Compatible with .458 caliber and .45-70 barrels, this pilot is an essential accessory for gunsmiths performing barrel lapping, polishing, or other muzzle-end bore work.