Duration of Shotgun Cartridges: A Detailed Overview of Shotgun Shell Shelf Life and Preservation Methods
Shotgun shells, when stored under optimal conditions, can last for an impressive length of time. With proper care and storage, these shells can maintain their performance for decades, often exceeding 25 years.
The longevity of shotgun shells is largely dependent on the storage conditions they are kept in. Moisture, extreme temperatures, and direct sunlight are the primary threats to their shelf life.
Moisture is arguably the biggest enemy of shotgun shells. It can corrode the primer and degrade the powder, leading to a significant decrease in performance. Prolonged exposure to direct sunlight can degrade the plastic or paper of the hull, making it brittle and prone to cracking. Extreme temperatures, both hot and cold, can also negatively affect shotgun shells by accelerating the chemical breakdown of the powder and weakening the hull and primer.
To maximise the lifespan of shotgun shells, they should be stored in a cool, dry place, with a consistent temperature. They should be protected from sunlight, kept organised, and elevated from the floor.
The type and quality of the storage material can also impact the lifespan of shotgun shells. Storing ammunition in sealed, military-style ammo cans or hard plastic/metal cases can protect them from moisture and impact. Using desiccant packs (silica gel) to absorb any residual moisture inside storage containers can further ensure a dry environment for the shells.
Under ideal storage conditions, shotgun shells can last for decades, even 50 years or more. Some specialized 12-gauge ammunition brands report no expiration dates and claim the ammo will function perfectly for very long times if these storage conditions are met.
It's essential to regularly inspect shotgun shells for signs of deterioration. Any shells showing signs of moisture damage, physical damage, or degradation of the primer or powder should be discarded. Physical damage to the shell, such as dents, scratches, or corrosion, can compromise its integrity and make it unsafe to fire.
In conclusion, the best practice for long-term shotgun shell storage is a combination of airtight storage, moisture control, and a stable, moderate environment. Under such conditions, shells remain reliable for decades, often exceeding 25 years.
Sports can benefit from proper care and storage techniques, much like the management of shotgun shells. Aiming for cool, dry storage conditions with minimal exposure to sunlight will help maintain the performance of sports equipment for extended periods.
