Choosing the right scope mount is crucial for achieving optimal accuracy, especially in long-range shooting. A 20 MOA (Minute Of Angle) scope mount offers a significant advantage by providing an increased elevation adjustment range, crucial for compensating for bullet drop at longer distances. This comprehensive guide will delve into the benefits, considerations, and selection process for 20 MOA scope mounts.
Understanding MOA and its Importance in Long-Range Shooting
MOA, or Minute of Angle, represents 1/60th of a degree. At 100 yards, 1 MOA equates to approximately 1 inch of group size. This means a 20 MOA adjustment allows for a 20-inch vertical adjustment at 100 yards. While this might seem excessive for close-range shooting, it becomes invaluable when engaging targets at extended distances where bullet drop is substantial. Without a 20 MOA mount, you might run out of vertical adjustment on your scope's turrets before reaching optimal zero at your desired range.
Benefits of Using a 20 MOA Scope Mount
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Extended Elevation Adjustment: The primary benefit is the increased vertical adjustment range. This allows you to dial in your scope for longer-range shots without needing to excessively cant your rifle or worry about running out of adjustment.
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Reduced Turret Travel: By using a 20 MOA mount, you start with 20 MOA of elevation already dialed in. This means less travel on your scope's elevation turret, increasing precision and efficiency in making adjustments.
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Improved Zeroing Process: The extended range provided by a 20 MOA mount simplifies the zeroing process, particularly at longer ranges. You won't need to spend as much time making large adjustments.
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Optimal Scope Placement: A well-designed 20 MOA mount allows for ideal scope placement, contributing to a more comfortable and ergonomic shooting position.
Factors to Consider When Choosing a 20 MOA Scope Mount
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Material: High-quality materials such as aluminum alloy are crucial for durability and precision. Look for mounts made from aircraft-grade aluminum for superior strength and longevity.
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Construction: The mount should be precisely machined to ensure perfect alignment and repeatable accuracy. Consider mounts with one-piece construction for added rigidity.
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Ring Height: Ring height determines the clearance between the scope and the barrel. Selecting the appropriate ring height is critical for ensuring proper eye relief and avoiding any interference with the scope or rifle.
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Compatibility: Ensure the mount is compatible with your specific rifle's receiver and scope's tube diameter. Double-check the specifications before purchasing.
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Manufacturer Reputation: Choose a reputable manufacturer with a history of producing high-quality, reliable products. Read reviews and check the manufacturer's warranty information.
Types of 20 MOA Scope Mounts
20 MOA scope mounts are available in various styles, including:
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Picatinny Rail Mounts: These are the most common type, offering great versatility and compatibility with a wide range of rifles and scopes.
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Weaver Rail Mounts: While less common than Picatinny, Weaver rail mounts are still suitable for many rifles.
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One-Piece Mounts: These provide a solid, rigid platform for your scope.
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Two-Piece Mounts: These offer some flexibility but are generally less rigid than one-piece mounts.
Conclusion
Investing in a high-quality 20 MOA scope mount is a worthwhile upgrade for any serious long-range shooter. By understanding the factors discussed above and selecting a mount that suits your needs, you can improve your shooting accuracy and enhance your overall shooting experience. Remember to prioritize quality, compatibility, and a reputable manufacturer to ensure years of reliable performance.
