Description Traditional line of bullets features exposed lead tips for controlled expansion and hard-hitting terminal performance. Most of these bullets feature our exclusive interLock (IL) design - a raised ring inside the jacket that is embedded in the bullet's core that keeps the core and jacket locked together during expansion to retain mass and energy. 6mm Caliber .243 Diameter. Firearms, trailers, and some accessories are only available for purchase in stores. Each location follows all BATF and individual state/county/city laws to insure the desired product is legal for sale. Any info provided online is subject to change, please go to your local store for more accurate information.