Description
The Hoppe's BoreSnake Viper Den takes the fastest bore cleaner around and gives it a home. This version fits .35, .350, .358, and .375 caliber rifles, so it covers everything from .35 Remington and .358 Winchester to .375 Winchester. Instead of fussing with rods, patches, and jags, you drop the weighted end down the bore and pull it straight through. One pass and you're done. The cone-shaped bore guide on the lead end helps it feed in smooth and looks after your rifling as it goes.
What Makes the Viper Den Pull Its Weight
The Viper setup carries an integrated bronze brush that scrubs out carbon fouling, backed up by a long braided tail that wipes loose debris and grime as it follows the brush through the barrel. That tail gives you roughly 160 times the cleaning surface of a standard patch, which is why it clears so much in a single pull. Compared to the original BoreSnake, the Viper design brings about 50% more scrubbing power, and the pull cord ties straight to the brushes for extra strength. There's a marked lubrication zone too, so you can add a few drops of your favorite Hoppe's solvent or oil and clean, scrub, and lube all in one motion.
Living With the BoreSnake Viper Den Case
The Den is the part folks tend to appreciate most day to day. It's a clear, compact case that keeps the rope from tangling up with the rest of your gear, and it slips easily into a range bag, pack, or truck box. The lid snaps into the case and doubles as a pull handle, so the whole thing stays together and ready to go. It's a favorite for range trips, breaking in a new barrel between strings, or a quick cleanup before you can sit down for a full detail at home.
When the rope finally loads up with carbon, toss it in the wash and hang it to dry. It's solvent resistant and machine washable, so you get plenty of reuse out of it before it needs replacing.
Key Specifications
- Manufacturer: Hoppe's
- Model: BoreSnake Viper Den
- Manufacturer Part Number: 24018VD
- UPC: 026285001372
- Caliber/Gauge: .35 / .350 / .358 / .375 Caliber
- Style: Rifle
- Product Type: Bore Cleaner Rope
- Brush Material: Bronze
- Construction: Brass, Cotton, Nylon
- Bore Guide: Cone-Shaped for Easier Insertion
- Cleaning Surface: Approx. 160x a standard patch
- Reusable: Yes, machine washable and solvent resistant
- Quantity: 1
What’s Included
- Hoppe's BoreSnake Viper rifle cleaning rope (.35/.350/.358/.375 caliber)
- Integrated bronze brush
- Den storage case with snap-in lid pull handle
Frequently Asked Questions
What calibers does this BoreSnake Viper Den fit?
This model (24018VD) is sized for .35, .350, .358, and .375 caliber rifles. That covers popular chamberings like .35 Remington, .350 Remington Magnum, .358 Winchester, and .375 Winchester. Always match your BoreSnake to your bore diameter for the best fit and cleaning.
Can I reuse the BoreSnake Viper, or is it one and done?
You can reuse it plenty. The rope is machine washable and solvent resistant, so once it loads up with carbon you just wash it and hang it to dry. Tossing it in a laundry bag helps it hold up longer wash after wash.
How do I use the Viper Den to clean my rifle?
Add a little solvent to the front of the rope and a few drops of oil to the marked lubrication zone, then drop the weighted end down the bore from the chamber side. Pull it straight through using the handle until it clears the muzzle. The cone-shaped bore guide helps it feed in cleanly, and one or two passes usually does the job.
What's the point of the Den case?
The Den is a compact clear case that keeps the rope tidy and tangle-free between cleanings. It fits easily in a range bag or pack, and the lid snaps into the case and doubles as a pull handle. It's a handy way to keep everything together for quick cleanups at the range.





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