Otis Cleaning Kit: The Universal Rifle Cleaning Kit is for firearm owners looking for a cleaning kit specifically for their rifles. The unique cotton patches create swabs for 360 degree coverage, ensuring a proper Breech-to-Muzzle clean for most rifles. Five bore brushes are included: .22/.223 cal, .243 cal/6mm, .260/.270 cal/6.5mm, .30 cal variants and .338/.35/.357 cal. Made in the USA and contained in a lightweight, compact soft pack case. Ammo Specifications: Caliber: 223 REMINGTON AMMO Bullet Type: Full Metal Jacket Muzzle Velocity: 3200 fps Muzzle Energy: 1250 ft. lbs. Primer: Boxer Casing: Brass Casing Ammo Rating: Target and Practice 223 Remington Ammo Ballistics (barrel length: 24 inches) Velocity (feet per second): 3200 Energy (foot-pounds): 1250 Bullet Path (inches): -1.50