SDI Hammer-Fired Pistols (FTH 223) Practice Test

How do you determine the correct ammunition for your pistol?

Use ammunition specified by the manufacturer for your model and caliber; check packaging and markings. Use any ammunition of similar size. Use reloaded ammunition only. Use high-velocity rounds regardless of caliber.

Correct Answer:

Use ammunition specified by the manufacturer for your model and caliber; check packaging and markings.

Explanation:

Use ammunition specified by the firearm’s manufacturer for your exact model and caliber, and verify this on the packaging and markings. This matters because the pistol is designed to handle a specific pressure, velocity, and cartridge dimensions. Matching the manufacturer’s ammunition ensures reliable feeding, safe chamber pressure, and proper function of the action and safety features. Relying on similar-sized ammo can still mean the wrong case dimensions or pressure, reloaded ammunition can vary in charge and consistency, and high-velocity rounds can push pressures beyond what the pistol is designed to safely withstand. Always check the package for the correct caliber, model compatibility, and any manufacturer warnings to keep the pistol safe and reliable.

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