The PREMIUM CARBON CLEANING RODS .338-.50 CAL / 56" by Birchwood Casey are designed for firearms with calibers ranging from .338 to .50. These cleaning rods are longer, measuring 56 inches in length, providing extended reach for thorough cleaning of barrels and chambers. Constructed from premium carbon, they offer durability and strength for effective maintenance of firearms. Features: Caliber Range: Designed for firearms with calibers ranging from .338 to .50. Length: Measures 56 inches, providing extended reach for thorough cleaning. Material: Constructed from premium carbon for durability and strength.