Frontier Cartridge119715273
Frontier Cartridge Military Grade 5.56x45mm NATO 75 Grain Hornady HPBT Match Ammo$15.38
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Availability: In Stock
Hornady BLACK 5.56x45mm NATO ammunition in 75 grain Interlock HD is engineered specifically for short-barreled rifles (SBRs) with barrels between 10.5" and 11.5". This round uses proprietary propellant technology and bullet design derived from Hornady's Critical Duty FlexLock line, delivering consistent performance whether your rifle runs suppressed or unsuppressed, direct impingement or piston-driven. If you run an SBR—whether for home defense, precision work, or duty use—this load is built to function reliably across your platform without the flash, fouling, or suppressor heat issues that plague standard 5.56 ammunition.
The 75 grain InterLock HD projectile is a jacketed soft point designed to expand reliably while maintaining integrity through intermediate barriers. Hornady engineered this round to meet FBI protocol standards, so you're getting ammunition tested to real-world defensive requirements. Velocity is uniform from shot to shot, which means tighter groups and more predictable bullet performance downrange. Because the load is optimized for shorter barrels, you won't sacrifice velocity or reliability—two critical factors when your SBR is your go-to rifle.
Every round is loaded with quality brass cases and matched primers, then proudly manufactured in the USA. Whether you're training, testing a new rifle build, or stocking a duty gun, you can trust Hornady BLACK to perform consistently. Each box contains 20 rounds.
| Cartridge | 5.56mm NATO |
| Bullet Type | InterLock HD Jacketed Soft Point |
| Bullet Weight | 75 Grains |
| Rounds Per Box | 20 |
| Product Line | Hornady BLACK |
| Barrel Length Range | 10.5"–11.5" (SBR-optimized) |
Yes. Hornady BLACK 75 grain Interlock HD is specifically designed for short-barreled rifles between 10.5" and 11.5", and the load produces minimal flash and suppressor fouling compared to standard 5.56 ammunition.
The round features a 75 grain InterLock HD jacketed soft point projectile, which is derived from Hornady's Critical Duty FlexLock technology and designed to provide controlled expansion while meeting FBI protocol performance standards.
Yes. While optimized for 10.5"–11.5" SBRs, Hornady BLACK ammunition delivers reliable performance whether suppressed or unsuppressed, and across direct impingement, piston, bolt, and semi-automatic platforms.
Each box contains 20 rounds of 5.56x45mm NATO ammunition.
SKU: 119716991 • Width: 2.4in • Height: 1in • Depth: 4.5in • Weight: 0.63oz
Availability: In Stock
Hornady BLACK 5.56x45mm NATO ammunition in 75 grain Interlock HD is engineered specifically for short-barreled rifles (SBRs) with barrels between 10.5" and 11.5". This round uses proprietary propellant technology and bullet design derived from Hornady's Critical Duty FlexLock line, delivering consistent performance whether your rifle runs suppressed or unsuppressed, direct impingement or piston-driven. If you run an SBR—whether for home defense, precision work, or duty use—this load is built to function reliably across your platform without the flash, fouling, or suppressor heat issues that plague standard 5.56 ammunition.
The 75 grain InterLock HD projectile is a jacketed soft point designed to expand reliably while maintaining integrity through intermediate barriers. Hornady engineered this round to meet FBI protocol standards, so you're getting ammunition tested to real-world defensive requirements. Velocity is uniform from shot to shot, which means tighter groups and more predictable bullet performance downrange. Because the load is optimized for shorter barrels, you won't sacrifice velocity or reliability—two critical factors when your SBR is your go-to rifle.
Every round is loaded with quality brass cases and matched primers, then proudly manufactured in the USA. Whether you're training, testing a new rifle build, or stocking a duty gun, you can trust Hornady BLACK to perform consistently. Each box contains 20 rounds.
| Cartridge | 5.56mm NATO |
| Bullet Type | InterLock HD Jacketed Soft Point |
| Bullet Weight | 75 Grains |
| Rounds Per Box | 20 |
| Product Line | Hornady BLACK |
| Barrel Length Range | 10.5"–11.5" (SBR-optimized) |
Yes. Hornady BLACK 75 grain Interlock HD is specifically designed for short-barreled rifles between 10.5" and 11.5", and the load produces minimal flash and suppressor fouling compared to standard 5.56 ammunition.
The round features a 75 grain InterLock HD jacketed soft point projectile, which is derived from Hornady's Critical Duty FlexLock technology and designed to provide controlled expansion while meeting FBI protocol performance standards.
Yes. While optimized for 10.5"–11.5" SBRs, Hornady BLACK ammunition delivers reliable performance whether suppressed or unsuppressed, and across direct impingement, piston, bolt, and semi-automatic platforms.
Each box contains 20 rounds of 5.56x45mm NATO ammunition.
SKU: 119716991 • Width: 2.4in • Height: 1in • Depth: 4.5in • Weight: 0.63oz