Underwood Ammo proudly features Hornady InterLock bullets, engineered to deliver unmatched performance for serious hunting. The exclusive InterLock Ring ensures that the core and jacket stay securely bonded during expansion, resulting in superior mass retention, energy transfer and momentum after impact. This design translates into reliable stopping power and has earned the InterLock a renowned reputation among hunters worldwide. As with all Underwood Ammo products, these rounds use flash-suppressed powder to maintain your vision in low-light situations. Field-tested with real-world firearms using our advanced testing equipment, this high-performance ammunition is new production, non-corrosive and housed in boxer-primed, reloadable brass cases. It combines cutting-edge technology with practical reliability for effective hunting and performance.