Factory Load Options For Extreme Cold Weather: What To Look For?

Primer Selection and Load Balancing

When hunting in extreme cold, choose factory loads that utilize high-powered primers such as Federal 210M or Remington 9 1/2. These primers ignite more efficiently in the cold, which can be crucial for consistent and reliable ignition. Additionally, look for loads with a heavy-for-caliber bullet as it will maintain its velocity better than a lighter bullet. For example, in a 308 Winchester, a 185-grain bullet will lose velocity significantly faster than a 220-grain bullet.

Propellant Types and Cold Performance

Some propellant types hold up better in sub-zero temperatures than others. Look for powders that use a denser or more stable granule size, such as Hodgdon H1000 or IMR 4831. These types of powders burn more efficiently and retain their energy in cold temperatures. When choosing a propellant type, also consider the burn rate and how it will affect the cartridge’s performance. Faster burn rates can lead to inconsistent velocities, especially in the cold.

Specific Load Recommendations

For cartridges like the 308 Winchester, consider the following factory load options: Hornady 220-grain ELD Match, Federal 220-grain Nosler Partition, or Remington 220-grain Core-Lokt. These loads utilize high-powered primers, heavy-for-caliber bullets, and propellant types that will perform consistently in extreme cold. Always check the load’s ballistics and ensure they meet your requirements, and follow all safety guidelines when hunting in cold weather conditions.