Black Hills Ammunition – 5.56mm – 77 Grain OTM

Our Dual Performance™ line features a monolithic machined copper projectile that immediately begins expansion upon impact forming a temporary cavity exceeding the capability of conventional bullets. Once the large primary cavity is created, the petals release from the body of the projectile to cut separate wound tracks through the stressed tissue. The body of the bullet, still retaining a substantial percentage of its original weight but now free from the unnecessary drag, penetrates deeply to ensure maximum effect on the target.