Finding the Perfect 20 MOA Scope Base: A Comprehensive Guide
Choosing the right scope base is crucial for accurate long-range shooting. A 20 MOA (Minute Of Angle) base offers a significant advantage for shooters needing to dial in elevation adjustments, particularly at extended ranges. But with so many options available, how do you find the perfect 20 MOA scope base for your needs? This guide will help you navigate the choices and make an informed decision.
Understanding the Importance of a 20 MOA Base
Before diving into specifics, let's clarify why a 20 MOA base is beneficial. A standard scope base provides a relatively flat mounting platform. However, when shooting at longer distances, you might find your scope's elevation adjustment runs out before you reach your target's zero. This is where a 20 MOA base comes in.
By inclining the scope 20 MOA (approximately 11.5 inches at 100 yards), it effectively provides you with an additional 20 MOA of elevation adjustment before you even begin using your scope's turret. This extra range is essential for precision long-range shooting.
Key Factors to Consider When Choosing a 20 MOA Scope Base
Several factors should influence your choice of 20 MOA scope base:
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Material: Bases are typically made from aluminum alloy (e.g., 6061-T6 aluminum) known for its strength and durability. High-quality materials ensure long-lasting performance and can withstand recoil.
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Construction: Look for bases machined from solid billet aluminum rather than cast aluminum for greater strength and precision. A one-piece construction is generally superior to a two-piece design for better rigidity.
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Compatibility: Ensure the base is compatible with your specific firearm's receiver and scope rings. Check the manufacturer's specifications carefully to guarantee a proper fit. Note the rail type (e.g., Picatinny, Weaver) and the specific firearm model.
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Height: The height of the base affects the overall scope height and cheek weld. Consider your chosen scope and your preferred shooting position when selecting a base height. Too low and you might experience scope interference; too high and your cheek weld might feel uncomfortable.
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Manufacturer Reputation: Choose a reputable manufacturer with a history of producing high-quality, reliable products. Look for brands with a strong reputation for precision and durability.
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Finish: A durable finish, such as hard-anodizing, protects the base from corrosion and wear. This is especially important for outdoor use.
Types of 20 MOA Scope Bases
Several types of 20 MOA bases exist, catering to different mounting systems:
- Picatinny Rail Bases: The most common type, offering a robust and versatile mounting solution.
- Weaver Rail Bases: Another popular option, offering a slightly different mounting system.
- Specific Firearm Bases: Some manufacturers offer bases designed specifically for certain firearm models, ensuring a perfect fit and optimal performance.
Installation and Precautions
Proper installation is critical for the safety and accuracy of your shooting. Always consult the manufacturer's instructions and, if unsure, seek professional assistance from a qualified gunsmith. Improper installation can lead to scope damage or even injury.
Conclusion: Making the Right Choice
Selecting a 20 MOA scope base involves careful consideration of several factors. Prioritizing compatibility, material quality, and manufacturer reputation will ensure you get a high-quality base that supports accurate long-range shooting. Remember to always double-check compatibility with your rifle and scope before purchasing. Investing in a quality 20 MOA scope base will significantly enhance your shooting experience and accuracy at longer distances.
