The Hornady Cam-Lock Bullet Puller Collet is designed specifically for 20 caliber rifle cartridges and works seamlessly with the Hornady Cam-Lock Bullet Puller system.Hornady Cam-Lock Bullet Puller Collet for 20 CaliberCompatible with Hornady Cam-Lock Bullet PullerDesigned for rifle cartridges onlyFast and easy bullet pulling with your reloading pressPrecision-engineered collet systemThis collet provides the fastest and easiest way to pull bullets using your reloading press making it an essential accessory for precision reloaders working with 20 caliber rifle ammunition.