Quick Answer
Developing a .280 Remington load for mule deer hunting involves starting with a suitable case, a moderate to fast burning powder, and a bullet that balances expansion and penetration. Choose a case that's suitable for your rifle and the cartridge's design parameters. Experiment with different powder charges and bullet weights to find the optimal combination.
Case Selection
When selecting a .280 Remington case, ensure it’s from a reputable manufacturer and suitable for your rifle. The SAAMI (Sporting Arms and Ammunition Manufacturers’ Institute) standard for the .280 Remington case has a maximum overall length of 2.26 inches and a maximum case capacity of 43.5 grains of water. Look for cases that meet these specifications, and consider using custom or load-specific cases for optimal performance.
Powder Selection
For a .280 Remington load, choose a moderate to fast burning powder that provides a flat trajectory and decent velocity. Powders like H1000, IMR 4350, or Varget are good options, offering a balance between muzzle velocity and pressure. Start with a base charge and gradually increase it to find the optimal amount for your specific load.
Bullet Selection and Load Development
For mule deer hunting, a bullet that expands quickly and penetrates deeply is essential. Choose a bullet that weighs between 140 and 150 grains, such as the Nosler Partition or the Hornady SST. When load developing, start with a low charge and gradually increase it while monitoring pressure and velocity. Use a chronograph to measure muzzle velocity, and a high-impact gel or ballistic pendulum to test expansion and penetration.
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