Quick Answer
Handloading during extreme weather conditions can be safe if done properly, but it requires special precautions to prevent accidents and ensure reliable ammunition performance.
Precautions in Extreme Heat
When handloading in extreme heat, above 90°F (32°C), it’s essential to prevent the components and finished rounds from overheating, which can lead to excessive pressure, priming issues, or even a stuck case. Keep the handloading area shaded, use a thermometer, and maintain the ideal temperature for loading, between 70°F (21°C) to 80°F (27°C). Additionally, consider using a cooling system or a misting bottle to keep the components at a stable temperature.
Precautions in Extreme Cold
In cold temperatures, below 40°F (4°C), the lubricants and waxes on the bullet and case can become brittle or harden, which may lead to feeding and extraction issues. To mitigate this, use a lubricant specifically designed for low temperatures and consider using a case lube with a lower melting point. It’s also crucial to maintain a clean and dry handloading area to prevent moisture from accumulating and causing problems.
Loading for Extreme Weather Conditions
When loading ammunition for extreme weather conditions, consider using components that are designed to perform well in those conditions. For example, use a primer that is specifically designed for high- or low-temperature performance. Additionally, select a propellant that is stable across a wide temperature range. It’s also essential to follow a tried and tested loading recipe, and to carefully check the results of each load to ensure reliable performance.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.