Chamber Pro Ideal for difficult to reach chambers, the Chamber Pro features a flexible cable to navigate into the chamber from the action of your rifle chambered in 6.5. Features a tapered caliber specific phosphor bronze chamber brush and an ergonomic T-handle. Cleans 6.5MM, 6.5 Creedmoor, Available in the following calibers: .223, .30, .338, and .50 cal.