The BRASS JAGS DEWEY 27JM is designed to clean .27 to 7mm calibers, providing extensive contact with the bore for efficient fouling removal.
It is compatible with Dewey Stainless, Rig, and Hoppe’s rods, but requires adapters for Dewey Coated Rods, except for 17 and 20 caliber which fit directly.
Constructed from brass with male threading, it comes in two thread sizes: 5-40 for .17 and .20 caliber and 8-32 male for calibers above .20.