The Hoppe's 1304P Phosphor Bronze Brush is designed for efficient firearm cleaning with 270/7mm caliber compatibility. These brushes feature phosphor bronze bristles built for durability and effective cleaning performance.Hoppe's 1304P Phosphor Bronze Cleaning Brush270/7mm caliber compatibility10-pack quantity for extended usePhosphor bronze construction for durabilityMost effective on lead fouling removalStout build quality for efficient cleaningEssential for maintaining firearm accuracy and performance these brushes provide reliable cleaning power for 270/7mm caliber firearms with superior lead fouling removal capabilities.