Hornady Black 5.56 NATO 75 grain InterLock HD SBR is a centerfire rifle cartridge sold in 20-round boxes and 200-round cases (10 boxes). This load is formulated for short-barreled rifles and is specifically optimized for 10.5–11.5 inch SBR barrels for improved performance in suppressed and unsuppressed use. Manufacturer-listed ballistics for this load show a muzzle velocity of 2321 feet per second and a muzzle energy of 897 ft-lbs.
Key Specifications
- The cartridge is chambered in 5.56 NATO.
- The bullet weight is 75 grains.
- Each retail box contains 20 rounds.
- A standard case consists of 10 boxes.
- The total rounds per case are 200 rounds.
- The listed muzzle velocity is 2321 fps.
- The listed muzzle energy is 897 ft lbs.
- The cartridge uses brass cases.
- This load is optimized for 10.5–11.5 in SBR barrels.
- The marketed model name is BLACK.
This Hornady Black load offers a factory-configured option for shooters running short-barreled 5.56 platforms who prioritize consistent velocity and predictable performance from a boxed ammunition format. Packaged in 20-round boxes and available by the case as ten boxes, it provides a measured, factory-specified choice for range and duty-style applications.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.
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