Hornady Critical Defense Triple Defense .410 bore 2.5″ shotshells are built around a stacked projectile column intended for short-range defensive use in compact pistols and derringers chambered for .410. The load combines two .35-caliber round balls beneath a .41-caliber FTX slug to produce a concentrated pattern at close distances. Cases are described in supplier material as nickel-plated on many production runs, and the propellant choice is optimized to limit recoil and muzzle flash for small-frame firearms. This load is sold in 20-round boxes and is positioned for home/short-range defensive applications.
Key Specifications
- The cartridge is .410 Bore.
- The shell length is 2.5 inches.
- The projectile stack is two .35-caliber round balls and one .41-caliber FTX slug.
- Each box contains 20 rounds.
- Cases are listed as 10 boxes per case.
- The hull material is specified as plastic.
- The listed shot weight is 7/8 oz..
- Intended application is home/short-range defense and pistol use.
- Series is Triple Defense.
- Reported muzzle velocity varies by source; values of 720 fps and 750 fps have been cited.
The Triple Defense stack combines the penetration characteristics of round balls with the terminal performance enhancements of Hornady’s FTX slug design to deliver a compact, reliable defensive load for compatible .410 pistols and short-barreled shotguns. Its configuration and loading are intended to provide a tight pattern and controlled recoil for close-range, defensive scenarios where compact ammunition is required.
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