The Proof Positive .338 Caliber Pierce Style Rifle Jag is designed for effective cleaning of .338 caliber rifle barrels with pierce-style construction for secure patch attachment.Proof Positive .338 Caliber Pierce Style Rifle JagModel BTAJ-338-00Pierce-style design for reliable patch retentionSpecifically sized for .338 caliber rifle barrelsProfessional-grade cleaning accessoryEssential for maintaining accuracy and performance of .338 caliber rifles this jag provides secure patch attachment during barrel cleaning and maintenance procedures.