.20 Cal. Nylon Bore Brush by Dewey, .204 Ruger, Dozen Pack (B-20N)

Description

Anyone running a .204 Ruger or a .20 caliber wildcat knows finding the right sized cleaning gear can be a hunt on its own. This dozen pack of Dewey B-20N nylon brushes solves that. Each brush is built on a twisted brass wire core with the tip looped over instead of cut off, so there's no sharp wire end dragging across your rifling. The nylon bristles scrub out carbon and fouling while staying gentle on polished match bores, which is exactly why brushes like these get recommended by names like Sig Sauer and Glock for regular maintenance.

Why the Nylon B-20N Brush Earns Its Spot in Your Kit

The big advantage of nylon over bronze comes down to solvents. Bronze bristles and brass cores react with ammonia-based copper removers, leaving a blue-green stain on your patch that looks like copper fouling even after the bore is clean. Nylon bristles don't react that way, so you get a true read on when your barrel is done. They also hold up over time instead of eroding, and a quick wipe with a cotton rag after cleaning keeps each one ready for the next session.

Fitment for Your .20 Caliber Rifle Rod

Each brush measures 2½ inches long and uses a 5-40 male thread. That's the thread you'll find on Dewey and Outers small caliber rods, so if you're already running one of those setups these thread right on with no adapter. They're made for .20 caliber and .204 Ruger bores, so double check your rod's thread before pairing them with anything else.

Buying by the Dozen

Brushes are consumables, plain and simple. They wear down, and having a fresh one on hand beats scrubbing with a tired brush that's lost its bite. Getting twelve at once means you're stocked for a long stretch of range trips and load development without stopping to reorder. Toss a couple in your range bag and keep the rest at the bench.