The Hoppe's BoreSnake Den Rifle .338, .340 (Model HP24017D) is a rapid-use, one-pass barrel cleaning system designed to clear fouling quickly in the field or at the range. Built for high-power rifle maintenance, this manual pull-through tool combines three cleaning steps into a single pass, eliminating the immediate need for heavy, rigid cleaning rods during mobile operations. It operates purely mechanically, requiring no electrical power or regulatory compliance approvals for Australian shooters, and is designed to pack easily into any range bag or hunting pack.

Key Features

• Patented "Den" Storage Case: The clear plastic carrying case measures approximately 4.15 inches (10.5 cm) in length, protecting the cleaning cord and integrated brushes from gathering dirt and debris. The lid snaps off to double as a T-handle pull-grip for extra leverage.
• Three-in-One Cleaning Action: In a single pull, the weighted brass cord guides the snake through the bore where the first section loosens large carbon particles, the integrated bronze wire brushes scrub out persistent fouling, and the remaining tail section swabs the bore clean with 160 times the surface area of a standard cleaning patch.
• Washable and Reusable: The entire woven cotton floss and nylon rope construction is machine or hand washable, allowing for long-term repeated use.
• Compact Trail Design: Weighing approximately 0.16 lbs (72.5 grams), this cleaning system is optimized for backcountry weight savings where space and weight are at a premium.

Product Specifications

• Calibre Compatibility: Strictly .338 and .340 calibre rifle bores (including .338 Lapua Magnum, .338 Winchester Magnum, and .340 Weatherby Magnum)
• Model Number: HP24017D (also marketed as 24017D)
• Product Weight: 0.16 lbs (approx. 72.5 grams)
• Case Length: Approx. 4.15 inches (approx. 10.5 cm)
• Materials: Synthetic nylon rope, woven cotton floss, integrated bronze wire bristles, and a weighted brass pull cord

Who is the Hoppes Boresnake Rifle .338 .340 for?

• Backcountry hunters — requiring a highly packable rifle bore cleaning snake that weighs only 0.16 lbs (72.5 grams) to maintain barrel performance during multi-day expeditions where rigid cleaning rods are too heavy and bulky to carry.
• Target shooters — needing a fast, mid-session maintenance solution to clear carbon and powder buildup from .338 and .340 calibre barrels at the firing line between shooting strings without dismantling the rifle setup.

Less suitable for: Rifle bores smaller than the .338 calibre threshold where the thick nylon cord risks getting permanently jammed in the barrel, or bores larger than .340 calibre where the integrated bronze brush cannot make sufficient contact to scrub the rifling; for these applications, a calibre-specific cleaning rod with matching brass jags is required. It is also unsuitable for immediate use in barrels that have not cooled down to a safe-to-touch temperature, which requires a heat-resistant brass cleaning rod to prevent melting the synthetic fibers of the snake.