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Hornady 91256 Critical Duty 10mm 175 GR Flexlock 20 Rounds
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
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SKU: 91256-090255912562
Overview
Built for full-size handgun use, this 10mm Auto load is aimed at shooters who want a defensive cartridge with barrier penetration in mind. The nickel-plated cases make chamber checks easier in reduced light, while the low-flash propellant is intended to help preserve night vision during low-light shooting. Hornady’s FlexLock bullet combines an InterLock band and Flex Tip design to support controlled expansion and consistent performance, and each box contains 20 rounds.
Why Hunters Choose the Hornady
Users Who
Want barrier penetration in a
Nickel-plated Cases
Make chamber checks easier in
Low-flash Propellant
Helps preserve night vision during
Flexlock Bullet
Combines InterLock band and Flex
Loaded 175-grain
175-grain bullets at 1160 fps
Key Features
- 10mm Auto Critical Duty load with 175 gr FlexLock bullets
- Designed for users who prefer a full-size handgun for personal protection
- Bright nickel-plated cases help simplify chamber checks in reduced light
- Low flash propellant is intended to help preserve night vision
- FlexLock bullet combines an InterLock band and Flex Tip design
- 20 rounds per box
Best Used For
- Full-size handgun users seeking a 10mm load for personal protection applications.
- Low-light shooters who value nickel-plated cases and low-flash propellant.
- Hunters or outdoorsmen wanting barrier-penetrating ammunition in 10mm Auto.
- Users who prefer controlled-expansion bullet design and consistent terminal performance.
- Shooters stocking a 20-round box for defensive handgun readiness.
Specifications
| Bullet Type | FlexLock |
|---|---|
| Bullet Weight | 175 gr |
| Caliber | 10mm Auto |
| Casing Material | Nickel-Plated |
| Muzzle Energy | 523 ft lbs |
| Muzzle Velocity | 1160 fps |
| Rounds Per Box | 20 |
Pros
- Designed for users who want barrier penetration in a full-size handgun load.
- Nickel-plated cases make chamber checks easier in reduced light conditions.
- Low-flash propellant helps preserve night vision during low-light firing.
- FlexLock bullet combines InterLock band and Flex Tip for controlled expansion.
- Loaded with 175-grain bullets at 1160 fps and 523 ft-lbs muzzle energy.
- 20-round box offers a practical quantity for range or duty use.
Considerations & Trade-offs
- Designed for full-size handguns, so it may not be the most practical choice for compact carry setups.
- Built around barrier penetration and controlled expansion, which makes it purpose-specific rather than a general-purpose range load.
- The 20-round box count is relatively small, so volume use will require multiple boxes.
- Nickel-plated cases and low-flash propellant are useful in low-light conditions, but they do not change the need to verify compatibility with your handgun and intended use.
Suggested Comparisons
- 10mm Auto defensive handgun ammunition
- Low-flash handgun ammunition
- Barrier-penetrating duty ammunition
- Full-size handgun personal protection loads
Suggested Accessories
- Ammunition storage box
- Hearing protection
- Handgun cleaning kit
- Range bag
Frequently Asked Questions
What caliber and bullet weight is this Hornady Critical Duty load?
It is chambered in 10mm Auto and uses a 175 gr FlexLock bullet.
How many rounds come in a box?
Each box contains 20 rounds.
What information is provided about the case?
The listed casing material is nickel-plated, and the description says the bright nickel-plated cases can simplify chamber checks in reduced light.
What does Hornady say about the FlexLock bullet design?
Hornady says the FlexLock bullet combines a mechanical jacket-to-core InterLock band and a Flex Tip. The description states the band is intended to keep the bullet and core from separating, and the Flex Tip helps prevent clogging and aids bullet expansion.
Is this ammunition described as suitable for low-light use?
The description says it uses low flash propellant to help preserve night vision in low-light firing.