The .45 caliber covers more ground than most shooters realize - this brass jag fits the .45 ACP semi-auto, .45 Colt revolver, .45-70 Government lever gun, and .454 Casull. All fall within the .452"-.458" groove diameter range, so one gun cleaning jag services everything from a 1911 to a lever-action rifle. The pointed brass tip wraps the cleaning patch around itself and pushes it through the bore with full 360-degree wall contact, pulling fouling out on every pass.
The .45 ACP is the most popular large-bore pistol cartridge in the world. Range shooters often run 200 rounds in a session, and that volume produces a thick layer of carbon fouling and powder residue inside the barrel and chamber. The .45-70 faces a different challenge - heavy, slow bullets at black powder pressures leave lead deposits in the bore that can affect accuracy after just a few dozen rounds. Both fouling types respond to the same jag-based bore cleaning approach: solvent on a patch, push through, let it work, then dry patches to wipe clean.
For semi-auto .45 ACP guns, pay attention to the chamber and feed ramp - run a jag-wrapped patch into the chamber entrance to clear carbon that causes feeding issues. For the .45-70, use 2.5" patches. Gun cleaning on big-bore pistol and rifle cartridges is simple when you have the right brass jag for the job.
