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Hornady BLACK 5.56x45mm NATO Interlock HD SBR 75 Grain 20 Rounds
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$25.99
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SKU: WX2*0689721
Overview
Built for short-barreled rifle setups, this 5.56x45mm NATO load is intended for use in both suppressed and unsuppressed platforms where consistent performance matters. The round is described as producing very little flash or residue, with a reduced sound signature and less fouling or overheating of suppressors. It is also presented as offering uniform velocity and accuracy, along with controllable rate of fire in automatic platforms. The product notes that while it will fit in a .223 Remington chamber, it is a higher-pressure 5.56 NATO round and is not recommended for .223 Remington chambers.
Why Hunters Choose the Hornady
Suppressed Unsuppressed
Short-barreled rifles
Reduced Flash
Residue for cleaner shooting conditions
Dramatically Reduced
Sound signature in suppressed use
Uniform Velocity
Accuracy support consistent performance
Compatible Automatic
Automatic platforms for controllable rate
Key Features
- Designed for suppressed and unsuppressed short-barreled rifles
- Provides virtually no flash or residue
- Helps reduce sound signature
- Intended to minimize fouling and overheating of suppressors
- Offers uniform velocity and accuracy
- Built for controllable rate of fire in automatic platforms
Best Used For
- Suppressed short-barreled rifle users seeking reduced flash and sound signature
- Unsuppressed SBR shooters wanting uniform velocity and accuracy from 5.56 NATO
- Automatic-platform users needing controllable rate of fire during sustained firing
- Hunters or defensive shooters using rifles built for FBI protocol requirements
- Shooters with 5.56 NATO chambers, not .223 Remington chambers
Specifications
| Accuracy | Uniform |
|---|---|
| Bullet Type | Interlock HD SBR |
| Bullet Weight | 75 Grain |
| Cartridge | 5.56x45mm NATO |
| Compatible Chamber | 5.56x45mm NATO |
| Designed For | Suppressed and unsuppressed short-barreled rifles |
| Flash | Virtually no flash |
| Not Recommended For | 223 Remington chambers |
| Pressure | Higher pressures than .223 Remington |
| Product Line | BLACK |
| Protocol | FBI protocol |
| Rate Of Fire | Controllable in automatic platforms |
| Residue | Virtually no residue |
| Rounds | 20 |
| Sound Signature | Dramatically reduced |
| Suppressor Fouling | No fouling or overheating of suppressors |
| Velocity | Uniform |
Pros
- Designed for suppressed and unsuppressed short-barreled rifles
- Reduced flash and residue for cleaner shooting conditions
- Dramatically reduced sound signature in suppressed use
- Uniform velocity and accuracy support consistent performance
- Compatible with automatic platforms for controllable rate of fire
Considerations & Trade-offs
- Designed around suppressed and unsuppressed short-barreled rifles, so it may be more specialized than general-purpose 5.56 ammunition for users outside that setup.
- The product notes that 5.56 NATO runs at higher pressures and is not recommended for .223 Remington chambers, so chamber compatibility needs to be checked carefully.
- The description emphasizes performance characteristics such as reduced flash, sound signature, and suppressor fouling control, which are application-specific benefits rather than universal advantages for every rifle use case.
- Pack size is 20 rounds, which may be less convenient for high-volume range sessions or training compared with larger quantity options.
Suggested Comparisons
- 5.56x45mm NATO rifle ammunition
- Short-barreled rifle ammunition
- Suppressed rifle ammunition
- Duty/defensive rifle ammunition
Suggested Accessories
- Ammunition storage box
- Magazine
- Hearing protection
- Cleaning kit
Frequently Asked Questions
Is this ammunition intended for suppressed rifles?
Yes. The product description says it is designed for exceptional performance in both suppressed and unsuppressed short-barreled rifles.
Does the listing say anything about flash or residue?
Yes. It states there is virtually no flash or residue.
Can this 5.56x45mm NATO round be used in a .223 Remington chamber?
The description says a 5.56x45mm NATO round will fit in a .223 Remington chamber, but it also says 5.56 NATO runs at higher pressures and is not recommended for use in .223 Remington chambers.
What bullet weight and package count are listed?
The title lists 75 grain and 20 rounds.
Does the product description mention any protocol or testing standard?
Yes. It says the round is designed to meet the requirements of the FBI protocol.