10-Pack .45 Caliber Brass Bore Brush

In stock

SKU: BR-0001-045-p10

Product

10-Pack .45 Caliber Brass Bore Brush

In stock

SKU: BR-0001-045-p10

$19.00

$17.48

Packs

Available Options

.45

$1.90

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This .45 caliber brass bore brush covers the full .45 family - .45 ACP, .45 Colt, .45-70 Government, .454 Casull, and .458 bores. All share the .452"-.458" groove diameter range, one brush. Phosphor bronze bristles clear carbon, lead, and copper fouling from pistol and rifle barrels alike without risk to the rifling.

The .45 ACP is an American classic - carried since 1911, still one of the most popular self-defense and competition cartridges today. The larger bore means more surface area for fouling to accumulate, and the slower velocities of .45 ACP tend to leave heavier lead deposits compared to faster rounds. For lever-action .45-70 shooters, the same bore cleaning challenge applies with the added factor of higher-pressure loads driving jacketed bullets that leave copper fouling behind.

Whether you're cleaning a carry pistol, a competition 1911, or a .45-70 lever gun - this bore brush handles it. Apply solvent, run the brush through, follow with a dry patch. One bore cleaning tool that covers every .45 cal firearm in your gun cleaning rotation.

Caliber:

.454 Casull, .45 ACP, .45 Colt

Product Type:

Bore Brush

Firearm Type:

Pistol, Revolver

Use Case:

Bore Fouling Removal

Bristle Material:

Phosphor Bronze

Core/Stem Material:

Twisted Wire (Brass)

Bore Diameter (in):

0.451

Thread Size:

8-32

Pack Size:

10-Pack, 20-Pack, 3-Pack, 5-Pack, Single

Country of Origin:

Imported (China)

Brand:

GUNNIX

What calibers does a .45 bore brush fit?

A .45 caliber bore brush fits all handguns and rifles with a .451-.458 inch bore diameter: .45 ACP, .45 Colt (Long Colt), .45 GAP, .454 Casull, .444 Marlin, and .45-70 Government. Note: .44 Magnum has a smaller bore (.429"), so it needs a dedicated .44 caliber brush - a .45 brush will be too large for a .44 bore.

Why does my .45 ACP bore brush seem too small for the barrel?

Pistol bore brushes are sized for the bore diameter (the diameter between the rifling lands), not the groove diameter (which is larger). A .45 ACP bore is .450" across the lands and .452" across the grooves. The brush is designed to scrub the grooves where fouling collects. If the brush slides through with no resistance, the bristles may be worn flat - replace it with a fresh one.

Is a bore brush really necessary for .45 ACP?

Yes. The .45 ACP typically uses large, heavy bullets at relatively low velocity, which means more lead and carbon fouling deposits in the bore. Patches with solvent wipe the surface, but a bore brush physically scrubs into the rifling grooves where fouling embeds. Without brushing, buildup accumulates and can eventually affect accuracy and reliable feeding.

Should I use bronze or nylon for cleaning my .45?

Bronze is more effective for the typical fouling a .45 produces. Lead bullets leave heavy deposits that nylon bristles tend to slide over. If you shoot jacketed ammunition, copper fouling is added to the mix. Bronze bristles handle both. The only time to prefer nylon is when using aggressive copper solvents - bronze reacts with them, causing misleading blue-green patches.

Do I need a separate chamber brush for my .45 ACP pistol?

A bore brush can clean the chamber, but it won't scrub the chamber walls with the same pressure since the chamber is wider than the bore. Dedicated chamber brushes - or oversize bore brushes - grip the chamber walls for effective cleaning. Carbon rings build up at the mouth of .45 ACP chambers, especially in 1911-style pistols. If your gun has extraction issues, a chamber cleaning is the first thing to try.

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