Hornady Black 5.56 NATO 75gr InterLock HD Ammo - 20rd Box

The Hornady Black 5.56x45mm NATO 75-grain InterLock Heavy Duty ammunition delivers enhanced terminal performance for tactical applications and precision shooting. This specialized round combines Hornady's proven InterLock bullet technology with optimized powder charges for consistent accuracy across multiple barrel lengths.

What Makes This Different

The 75-grain InterLock Heavy Duty bullet features a raised ring mechanically locks the core and jacket together, preventing separation during expansion. Unlike standard M193 or M855 military rounds, this ammunition provides controlled expansion while maintaining deep penetration. The heavier bullet weight offers superior ballistic coefficients and reduced wind drift compared to lighter 55-grain alternatives, making it particularly effective at extended ranges.

Key Features

• 75-grain InterLock Heavy Duty bullet with mechanical core-jacket lock
• Optimized for 1:7 and 1:8 twist rate barrels
• Consistent velocities across 14.5" to 20" barrel lengths
• Low-flash powder reduces muzzle signature
• Boxer-primed brass cases suitable for reloading
• Temperature-stable propellant maintains performance in extreme conditions
• SAAMI-spec chambers ensure reliable feeding and extraction

This ammunition excels in precision rifle applications where accuracy and terminal effectiveness matter most. Law enforcement and competitive shooters appreciate the consistent sub-MOA potential from quality barrels. The heavier bullet maintains supersonic velocities longer than lighter alternatives, extending effective range while reducing sensitivity to crosswinds. The InterLock design provides reliable expansion in ballistic gelatin testing while retaining sufficient mass for barrier penetration.

Technical Specs

• Caliber: 5.56x45mm NATO
• Bullet Weight: 75 grains
• Bullet Type: InterLock Heavy Duty
• Muzzle Velocity: 2,790 fps (20" barrel)
• Muzzle Energy: 1,296 ft-lbs
• Case Material: Boxer-primed brass
• Quantity: 20 rounds per box, 10 boxes per case
• Overall Length: 2.26 inches
• Manufactured: Grand Island, Nebraska

Hornady's reputation for precision manufacturing ensures lot-to-lot consistency that serious shooters demand. The Black line specifically addresses tactical requirements while maintaining the accuracy standards competitive shooters expect from match-grade components.