How are Scope Rings Measured?
When it comes to choosing the right scope rings for your rifle or handgun, it’s essential to understand how they are measured. Scope rings are typically measured in inches or millimeters, and the measurement is usually referred to as the "ring size" or "mount size." In this article, we’ll explore the different methods of measuring scope rings and what you need to know to make an informed decision.
Measuring Scope Rings: A Guide
Scope rings come in various sizes, shapes, and materials, making it crucial to understand how they are measured. Here are the most common methods:
1. Outside Diameter (OD)
The outside diameter (OD) measurement is the most common method used to measure scope rings. This measurement is taken from the outside edge of the ring, from one side to the other. The OD measurement is usually measured in inches or millimeters.
| Ring Size | OD Measurement (inches) | OD Measurement (mm) |
|---|---|---|
| High | 1.000 – 1.125 | 25.4 – 28.6 |
| Medium | 0.750 – 0.875 | 19.1 – 22.2 |
| Low | 0.500 – 0.625 | 12.7 – 15.9 |
2. Inside Diameter (ID)
The inside diameter (ID) measurement is another method used to measure scope rings. This measurement is taken from the inside edge of the ring, from one side to the other. The ID measurement is usually measured in inches or millimeters.
| Ring Size | ID Measurement (inches) | ID Measurement (mm) |
|---|---|---|
| High | 0.500 – 0.625 | 12.7 – 15.9 |
| Medium | 0.375 – 0.500 | 9.5 – 12.7 |
| Low | 0.250 – 0.375 | 6.4 – 9.5 |
3. Turret Size
Turret size is another method used to measure scope rings. Turret size refers to the diameter of the ring’s turret, which is the part of the ring that holds the scope’s adjustment mechanism. Turret size is usually measured in inches or millimeters.
| Turret Size | Diameter (inches) | Diameter (mm) |
|---|---|---|
| Standard | 0.500 – 0.625 | 12.7 – 15.9 |
| Large | 0.750 – 0.875 | 19.1 – 22.2 |
| Extra Large | 1.000 – 1.125 | 25.4 – 28.6 |
Choosing the Right Scope Rings
When choosing the right scope rings for your rifle or handgun, it’s essential to consider the following factors:
- Scope size: Make sure the scope rings are compatible with the size of your scope.
- Turret size: Ensure the turret size of the scope rings matches the turret size of your scope.
- Mount type: Choose scope rings that match the type of mount you’re using (e.g., Weaver, Picatinny, or MIL-STD-1913).
- Material: Select scope rings made from durable, high-quality materials that can withstand the elements and rough handling.
Conclusion
In conclusion, measuring scope rings is a crucial step in choosing the right accessories for your rifle or handgun. By understanding the different methods of measuring scope rings, including outside diameter, inside diameter, and turret size, you can make an informed decision when selecting the right scope rings for your needs. Remember to consider the scope size, turret size, mount type, and material when choosing the right scope rings. With the right scope rings, you’ll be able to accurately and reliably mount your scope, ensuring optimal performance and accuracy.
