For long-range shooting enthusiasts, maximizing accuracy is paramount. One crucial component often overlooked is the scope mount. Specifically, a 20 MOA (Minute of Angle) scope mount plays a significant role in achieving optimal zeroing and long-range precision. This detailed explanation will unravel the mystery surrounding 20 MOA scope mounts, clarifying their purpose, benefits, and considerations for your shooting setup.
Understanding MOA and its Importance in Long-Range Shooting
Before diving into 20 MOA mounts, it's essential to grasp the concept of MOA. One MOA equates to approximately one inch of group size at 100 yards. This means that at 1000 yards, a 1 MOA rifle will group shots within a 10-inch circle. In long-range shooting, even small adjustments significantly impact accuracy.
What is a 20 MOA Scope Mount?
A 20 MOA scope mount is designed with an integrated 20-minute angle of elevation built into its base. This built-in cant allows for a greater range of vertical adjustment. Instead of starting your scope adjustment at zero, you begin with an existing 20 MOA elevation, effectively extending the upward travel of your scope's adjustment turrets. This is crucial for long-range shooting scenarios requiring substantial elevation adjustments to compensate for bullet drop.
Why Choose a 20 MOA Scope Mount?
Several key advantages make 20 MOA scope mounts popular among long-range shooters:
1. Extended Elevation Range:
This is the primary benefit. By incorporating a 20 MOA incline, you gain a significant increase in the total vertical adjustment range available to you. This allows you to dial in shots at longer ranges without running out of adjustment in your scope's elevation turret. This is crucial for hitting targets at distances beyond 600-800 yards.
2. Reduced Turret Travel:
Using a 20 MOA base means that you have to dial less on your scope’s turrets to achieve zero. This translates to quicker and more efficient adjustments during shooting sessions.
3. More "Headroom" for Adjustments:
With a standard mount, you might find yourself maxing out your elevation adjustment at a range considerably shorter than your rifle's capabilities. The 20 MOA mount provides the necessary "headroom" to handle the increased elevation needed at longer distances.
4. Improved Zeroing and Accuracy:
By optimizing your elevation adjustment, a 20 MOA mount contributes to a more precise and stable zero. This leads to greater accuracy and consistency in your shots.
When Do You Need a 20 MOA Scope Mount?
A 20 MOA scope mount is particularly beneficial if you engage in:
- Long-range shooting (beyond 600 yards): Bullet drop becomes increasingly significant, necessitating more elevation adjustment than a standard mount can offer.
- High-power scope use: High-magnification scopes often have limited elevation travel, making a 20 MOA mount essential.
- Shooting with projectiles that have significant bullet drop: Certain calibers and bullet designs experience greater bullet drop, necessitating extra elevation adjustment range.
Choosing the Right 20 MOA Scope Mount: Considerations
Selecting a suitable 20 MOA scope mount requires considering several factors:
- Rifle and Scope Compatibility: Ensure the mount fits your specific rifle's receiver and the scope's tube diameter.
- Material and Construction: High-quality materials like aluminum are crucial for durability and stability.
- Mounting System: Several mounting systems are available, including Picatinny, Weaver, and others, so choose one compatible with your rifle.
- Weight and Profile: Consider the weight and profile of the mount, especially for tactical applications where lighter and lower-profile options might be preferred.
Conclusion
Investing in a 20 MOA scope mount is a significant upgrade for long-range shooters aiming to enhance accuracy and efficiency. By extending elevation adjustment range and optimizing zeroing, this upgrade enables consistent and precise shots at extended distances. Consider the factors discussed above to choose the right mount for your specific needs and enhance your long-range shooting capabilities.
