To solve this problem DeweyRods.com offers a full line of aluminum jags, aluminum brush adapters, and nylon-coated cleaning rods with aluminum tips. Dewey explains: “Ammonia-based solvents attack copper & brass but also leave your patches a blue-green color so you are never sure if your bore is truly clean of copper. Our aircraft-grade aluminum has the same hardness of brass, it will not embed impurities or harm your bore, and ammonia will not attack it.” As shown below, along with caliber-specific aluminum jags (center), Dewey now offers aluminum thread adaptors (left) and aluminum-shaft brushes (right).

New Dewey ‘Copper Eliminator’ Cleaning Rods
These new rods have the same nylon coating and handle assembly as Dewey’s standard coated rods, but they feature a chemical-resistant, 8/32 female-threaded, aluminum ferrule. No brush adapters are required. Each rod is supplied with a male-threaded aluminum jag. Dewey charges $39.95 for these rods, but you may find them slightly cheaper at other vendors.

Copper Eliminator Rods are currently offered in two diameters (.22-.26 Cal, or .27+ Cal), and three lengths: 36″, 40″, 44″. Listed rod lengths do NOT include handle assembly. One last note: Dewey cautions users to avoid TM Solution, because this solvent may harm Dewey’s nylon rod-coatings.