Stay prepared at your workbench when you have the Hornady Cam Lock #4 Bullet Collet. This reloading tool is designed to pull bullets with a press and is for use with 0.257 and 0.264 bullet diameters. The metal construction encourages durability, while the design uses standard collets and is intended for rifle cartridges only. Hornady Cam Lock #4 Bullet Collet - Reloading at Academy Sports