The J. Dewey Brass Rifle Jag is precision-engineered for .270 caliber and 7mm rifles with 12/28 female threading for reliable cleaning rod attachment.J. Dewey .270/7mm Caliber Brass Rifle JagAll brass construction with pointed tip design12/28 female threads for secure attachmentCompatible with J. Dewey .30 caliber male threaded coated cleaning rodsDurable brass material resists corrosionEssential for proper rifle maintenance this brass jag provides secure patch attachment and smooth bore cleaning for .270 and 7mm caliber firearms when used with compatible J. Dewey cleaning rods.