Choosing the right scope mount is crucial for accurate long-range shooting. Two common options often leave shooters wondering about the best fit: 20 MOA and 0 MOA mounts. This article will break down the key differences between 20 MOA and 0 MOA scope mounts, helping you make an informed decision based on your specific needs and shooting style.
What is MOA?
Before diving into the comparison, let's clarify what MOA means. MOA stands for Minute of Angle. One MOA is approximately one inch at 100 yards. This measurement is vital in long-range shooting because it represents the precision of your rifle and the adjustments needed to correct for bullet drop and wind drift.
0 MOA Scope Mounts: The Basics
A 0 MOA scope mount provides a zero-degree inclination. This means the scope is mounted parallel to the rifle's bore. 0 MOA mounts are suitable for shooters who:
- Primarily shoot at shorter ranges: For close to medium-range shooting, the built-in elevation adjustment on your scope is usually sufficient.
- Prefer a simpler setup: 0 MOA mounts simplify the initial zeroing process, eliminating the need to account for the mount's inclination.
- Shoot with minimal bullet drop: This is often the case with lower-powered cartridges at shorter ranges.
Advantages of 0 MOA Mounts:
- Simplicity: Easier initial zeroing process.
- Cost-effective: Generally less expensive than 20 MOA mounts.
Disadvantages of 0 MOA Mounts:
- Limited elevation adjustment: At longer ranges, you may run out of elevation adjustment on your scope before reaching optimal zero. This can limit your maximum effective range.
20 MOA Scope Mounts: Maximizing Elevation Adjustment
A 20 MOA scope mount provides a 20-minute angle of inclination. This means the scope is canted upwards by 20 MOA (approximately 2 inches at 100 yards). This built-in cant gives you significantly more vertical adjustment in your scope. 20 MOA mounts are ideal for:
- Long-range shooting: The additional elevation provides the needed adjustment to compensate for substantial bullet drop at longer distances.
- High-powered cartridges: Cartridges with significant bullet drop greatly benefit from the extra elevation offered by 20 MOA mounts.
- Maximize scope's adjustment range: This allows you to use the full range of your scope's elevation adjustments.
Advantages of 20 MOA Mounts:
- Extended elevation adjustment: Prevents running out of elevation at long range.
- Improved accuracy at longer distances: Allows for precise zeroing even with significant bullet drop.
Disadvantages of 20 MOA Mounts:
- More complex zeroing process: Initial zeroing requires accounting for the 20 MOA inclination.
- Higher cost: Usually more expensive than 0 MOA mounts.
Which Mount is Right for You?
The choice between a 20 MOA and 0 MOA scope mount hinges on your shooting style and typical engagement distances.
- Shorter ranges (under 300 yards) with lower-powered cartridges: A 0 MOA mount is likely sufficient.
- Long-range shooting (beyond 300 yards) with high-powered cartridges: A 20 MOA mount is generally recommended to avoid running out of elevation adjustment.
Remember to consider your scope's total elevation adjustment range when making your decision. Even with a 20 MOA mount, exceeding the scope's maximum elevation adjustment is still possible with extremely long ranges or high-powered cartridges. Always consult the specifications of both your scope and chosen mount before purchasing. Proper planning ensures you have a setup that accurately and reliably hits your target, no matter the distance.
