Introduction:
The 20 MOA (Minutes of Angle) rail is a popular addition to many rifles, particularly those used for long-range shooting. It's designed to provide an upward cant to the scope, allowing shooters to make adjustments at longer distances. However, while offering significant advantages, a 20 MOA rail also presents certain drawbacks that prospective buyers should carefully consider. This article will delve into these disadvantages, helping you make an informed decision about whether a 20 MOA rail is right for your setup. We will explore the downsides of a 20 MOA rail, providing clear reasons why it may not always be the best choice.
Why a 20 MOA Rail Might Not Be Ideal for You
This section explores the key disadvantages of a 20 MOA rail, providing detailed explanations and practical examples.
1. Increased Complexity and Potential for Errors
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Zeroing Challenges: A 20 MOA rail significantly alters the initial zeroing process. Because the scope is canted upwards, you need to account for this elevation shift when initially sighting in your rifle. This can be more complex than zeroing a rifle with a standard rail and may require more time and ammunition. Incorrect zeroing can lead to inaccurate shots, especially at longer ranges.
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Increased Risk of Misalignment: The added complexity increases the chance of misaligning your scope. Even a small error in mounting the rail or the scope can amplify inaccuracies at longer distances. Precise mounting is critical for optimal performance, requiring specific tools and experience.
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Difficulty in Returning to Zero: If you need to remove your scope for any reason—cleaning, repairs, or switching to another optic—returning to your previous zero can be more challenging with a 20 MOA rail. The extra elevation adjustment introduces another variable to consider.
2. Compatibility Issues and Limited Options
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Scope Ring Height: Choosing the correct scope rings is crucial with a 20 MOA rail. You need rings tall enough to accommodate the added cant, which may limit your choices. Using incorrect rings can lead to poor scope mounting and reduced accuracy.
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Eye Relief Issues: Depending on the scope and rail combination, the 20 MOA cant can sometimes negatively impact eye relief. This can make shooting less comfortable, especially during extended use.
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Not Suitable for All Applications: A 20 MOA rail isn't necessary for all shooting disciplines. For short-range shooting or hunting at closer distances, the added cant may be unnecessary and could even be a detriment.
3. Added Weight and Cost
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Increased Weight: 20 MOA rails typically add a small amount of extra weight to your rifle. While minimal for many shooters, this added weight might be noticeable for those who prioritize the lightest possible setup.
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Higher Purchase Price: 20 MOA rails generally cost more than standard rails, adding to the overall cost of your rifle setup.
4. Potential for Reduced Accuracy in Certain Situations
While a 20 MOA rail enhances long-range accuracy, it can reduce accuracy in other scenarios. If you frequently shoot at close range or use your rifle for hunting in closer quarters, the additional cant may lead to less-precise shots.
When a 20 MOA Rail is Not Recommended
Consider foregoing a 20 MOA rail if:
- You primarily shoot at short ranges. The benefits are minimal, and the added complexity is unnecessary.
- You are a beginner shooter. The added complexity can be frustrating, and mastering basic zeroing is more crucial initially.
- You have limited budget. The added cost may not be justifiable for your shooting needs.
- You prioritize minimal weight. The added weight, however slight, could be a factor for certain applications.
Conclusion:
A 20 MOA rail offers significant advantages for long-range shooting, but it's crucial to understand the potential disadvantages. Carefully weigh the pros and cons based on your individual shooting needs, experience level, and budget. Choosing the right rail is a crucial decision that can directly impact your shooting accuracy and overall enjoyment of the sport. Don't just follow the trends; make an informed choice that's best for you.