Quick Answer
7mm SAUM can be a bit finicky to reload, but with the right components and attention to powder selection, compatibility issues can be minimized. It's essential to choose a powder that has been tested and proven reliable for this cartridge. Proper case preparation and seating depth are also crucial.
Case Preparation and Powder Selection
When reloading 7mm SAUM, it’s crucial to choose a case that fits the chamber specifications. Federal, Remington, and Nosler offer cases that are specifically designed for this cartridge. To ensure proper headspace, the case should be trimmed to 2.600 inches. The shoulder should also be squared and the primer pocket checked for proper depth.
For powder selection, look for loads that have been tested with a variety of powders, such as H1000, Varget, or Reloder 19. A starting load of 64-66 grains of H1000 with a 140-grain bullet is a good starting point. However, it’s essential to do further research and testing to find the optimal load for your specific rifle and hunting conditions.
Seating Depth and Bullet Selection
A good seating depth is critical for optimal performance in the 7mm SAUM. A seated depth of 0.030-0.060 inches from the lands to the ogive of the bullet is recommended. This allows for adequate room between the bullet and the rifling, while also ensuring proper contact with the lands.
When selecting a bullet, choose one that is designed for hunting and has a good balance of weight, expansion, and penetration. Bullets such as the 140-grain Nosler AccuBond or the 150-grain Hornady ELD-X are good options. Always follow the manufacturer’s recommendations for seating depth and loading data.
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