Quick Answer
The best powders for 7mm SAUM cartridges for maximum velocity include Hodgdon H1000, Hodgdon Retumbo, and Winchester 760. These powders deliver consistent and high performance results.
Choosing the Right Powder for 7mm SAUM
When selecting a powder for 7mm SAUM, consider the desired performance level and barrel length. For shorter barrels (less than 24 inches), Hodgdon H1000 provides reliable performance with a velocity of around 3,100 feet per second (fps) using a 150-grain bullet. In contrast, longer barrels (24-30 inches) benefit from Hodgdon Retumbo, which yields velocities of approximately 3,200 fps with the same bullet weight.
Powder Selection and Bullet Weight
When pairing powders with 7mm SAUM cartridges, bullet weight plays a crucial role. For example, using a 160-grain bullet in combination with Hodgdon H1000 can achieve velocities of up to 3,200 fps in a 26-inch barrel. Conversely, Winchester 760 and 150-grain bullets can produce 3,150 fps in a 28-inch barrel. These results highlight the importance of matching powder and bullet weight for optimal performance.
Important Considerations and Safety Precautions
When working with high-performance powders like Hodgdon H1000 and Hodgdon Retumbo, always follow safety guidelines to avoid accidents and injuries. Ensure proper gun handling, use protective gear, and follow established reloading procedures. Additionally, consider the ambient temperature and humidity when reloading, as these environmental factors can significantly affect powder performance.
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