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Bore Tech

Proof Positive Nylon Bore Brushes - 338 Caliber Nylon Bore Brush 3/Pack

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

338 Caliber

Nylon bore brush, sold in

Double-wound Design

Twice as many bristles as

Oversized Nylon

Bristles are built for added

Non-brass Cores

Couplers help avoid copper fouling

Use Fast-acting

Copper cleaners

$7.99
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SKU: 749101653

Overview

Built for routine bore maintenance, this nylon brush is intended for hunters and shooters who want a thorough cleaning tool for .338 caliber rifles. Its double-wound construction provides more bristles than competing brushes, increasing scrubbing action while helping shorten the cleaning process. Oversized bristles add strength, and the non-brass core and coupler are designed to avoid leaving copper fouling behind in the bore. Sold in a 3-pack, it is a practical choice for keeping a rifle cleaning kit stocked for regular use.

Why Hunters Choose the Bore Tech

Double-wound Nylon

Construction provides twice as many

Oversized Bristles

Add strength for more aggressive

Non-brass Cores

Couplers help avoid false copper

Designed Shorten

Increased brushing coverage

Three-pack Offers

Practical value for routine bore

Key Features

  • 338 caliber nylon bore brush, sold in a 3-pack
  • Double-wound design provides twice as many bristles as competing brands
  • Oversized nylon bristles are built for added strength
  • Non-brass cores and couplers help avoid copper fouling appearance in bores
  • Designed for use with fast-acting copper cleaners

Best Used For

  • Hunters maintaining .338 caliber rifle bores with a nylon brush and three-pack supply
  • Users wanting more bristles for heavier scrubbing during routine bore cleaning
  • Shooters avoiding brass components in cleaning tools to reduce false copper fouling readings
  • Anyone pairing a nylon bore brush with fast-acting copper cleaners for bore maintenance

Specifications

Bristle CountTwice as many bristles as competing brands
Bristle SizeOversized bristles
Brush MaterialNylon
Caliber.338 caliber
Compatibility NotesFor best results use with fast acting copper cleaner
ConstructionDouble wound
Core MaterialNon-brass
Couplers MaterialNon-brass
Length Adjustment For 17 And 20 Caliber Brushes1 inch shorter
Pack Quantity3/Pack

Pros

  • Double-wound nylon construction provides twice as many bristles as competing brands.
  • Oversized bristles add strength for more aggressive scrubbing action.
  • Non-brass cores and couplers help avoid false copper fouling indications.
  • Designed to shorten the cleaning process with increased brushing coverage.
  • Three-pack offers practical value for routine bore maintenance.

Considerations & Trade-offs

  • Nylon construction is a deliberate trade-off if you want to avoid brass components in the brush, but it may not suit users who prefer a different brush material for their cleaning routine.
  • The double-wound design and oversized bristles are intended to increase scrubbing action, which can also mean a more assertive pass through the bore than a standard brush.
  • This is a .338 caliber brush pack, so it is specific to that bore size and not a general-purpose cleaning accessory.
  • The product is sold as a 3-pack, which is practical for replacements but may be more than needed for occasional cleaning.

Suggested Comparisons

  • Gun cleaning brushes
  • Bore cleaning accessories
  • Rifle cleaning kits
  • Nylon cleaning tools

Suggested Accessories

  • Bore cleaning rod
  • Gun cleaning solvent
  • Patch holder
  • Cleaning jag

Frequently Asked Questions

What caliber is this brush made for?

This listing is for a .338 caliber nylon bore brush.

How many brushes come in the package?

It comes in a 3-pack.

What makes these Proof-Positive brushes different from standard nylon brushes?

The product description says they are "double wound" and have twice as many bristles as competing brands, with oversized bristles for added strength.

Why does Bore Tech use non-brass cores and couplers?

The description says the non-brass cores and couplers are intended to prevent the appearance of copper fouling remaining in your bores.

Are there any special size notes for this brush?

The only size note provided is for the .17 and .20 caliber rifle brushes, which are described as 1 inch shorter in length. That note does not apply to this .338 caliber brush in the provided data.