The 7mm Remington Magnum is a powerful cartridge known for its flat trajectory and hard-hitting performance, making it a favorite among long-range shooters and hunters. Choosing the right ammunition is crucial, and Sierra bullets offer a wide selection for this popular cartridge. This guide provides comprehensive load data for various Sierra bullets in the 7mm Rem Mag, focusing on safety and accuracy. Always consult your firearm's owner's manual and Sierra's official reloading manual for the most up-to-date and complete information before attempting any reloading. This information is for guidance only and should not be considered a substitute for proper reloading training and adherence to safety protocols.
Understanding Sierra Bullet Options for 7mm Remington Magnum
Sierra offers a diverse range of bullets designed for various hunting and shooting applications. For the 7mm Rem Mag, some popular choices include:
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Sierra 150gr ProHunter: This bullet is a great all-around choice, offering excellent accuracy and consistent performance on game. Its bonded construction ensures reliable expansion even on tough game animals.
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Sierra 160gr GameKing: The GameKing is a classic choice for hunters seeking a well-balanced bullet with good penetration and expansion. Its jacketed design provides consistent performance.
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Sierra 175gr MatchKing: This bullet is specifically designed for long-range accuracy, showcasing exceptional ballistic coefficients for minimal wind drift.
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Sierra 180gr SPT (Spitzer Poly Tip): This bullet provides a good balance between long-range performance and hunting applications, offering good penetration and expansion characteristics.
Sample Load Data (Illustrative Purposes Only)
Disclaimer: The following data is for illustrative purposes only. Do not use this data without consulting your firearm's owner's manual and Sierra's official reloading manual. Variations in powders, primers, cases, and equipment can significantly impact results. Always start with minimum loads and work up gradually, carefully monitoring pressure signs.
The table below shows example load data. Always double-check your own manual before using any data:
| Bullet | Weight (gr) | Powder | Powder Charge (gr) | Primer | COL (in) | Notes |
|---|---|---|---|---|---|---|
| Sierra 150gr PH | 150 | RL 22 | 60.0 - 62.0 | CCI 250 | 2.800 | Start low and work up gradually. |
| Sierra 160gr GK | 160 | IMR 4350 | 62.0 - 64.0 | Federal 215 | 2.850 | Start low and work up gradually. |
| Sierra 175gr MK | 175 | H1000 | 68.0 - 70.0 | Remington 9 ½ | 2.900 | Start low and work up gradually. |
| Sierra 180gr SPT | 180 | Retumbo | 72.0 - 74.0 | Winchester WLR | 2.950 | Start low and work up gradually. |
Note: COL refers to Cartridge Overall Length. Always measure your COL carefully.
Safety Precautions in Reloading
Reloading ammunition is inherently dangerous. Always adhere to these safety guidelines:
- Wear safety glasses and hearing protection.
- Work in a clean, well-ventilated area.
- Never exceed maximum recommended loads.
- Carefully inspect each cartridge before loading it into your firearm.
- Never mix different types of ammunition.
- Store your ammunition properly.
- Take a comprehensive reloading course from a qualified instructor.
Conclusion
This guide offers an overview of Sierra load data for the 7mm Remington Magnum. Remember, this is not a substitute for the official reloading manuals. Safe and responsible reloading practices are crucial to ensure accuracy and prevent accidents. Always prioritize safety and consult reliable sources before embarking on any reloading endeavors.
