Does Ammo Expire? How Long Does Different Types of Ammo Last

Expired Ammo Overview Most manufacturers list ammunition with a conservative 10-year lifespan. Actual longevity depends on storage conditions and materials. Properly stored ammo can last 15–25+ years or more. Factors such as moisture, heat, and sunlight degrade gunpowder and primers, making storage critical for long-term reliability. Materials of Ammunition Brass Brass-cased ammo is highly durable, […]