Choosing the right scope cap is crucial for protecting your valuable investment. Butler Creek is a well-known brand offering a variety of scope caps to fit various lens diameters. However, navigating the different sizes can be confusing. This guide will help you understand Butler Creek scope cap sizing and ensure you find the perfect fit for your rifle scope.
Understanding Butler Creek Scope Cap Sizing
Butler Creek scope caps are primarily sized according to the objective lens diameter and the eyepiece lens diameter. These are usually measured in millimeters (mm). You'll need to determine these measurements on your scope to find the correct Butler Creek cap.
How to Measure Your Scope Lens Diameters:
- Objective Lens: This is the larger lens at the front of your scope. Use a ruler or caliper to measure the diameter of this lens.
- Eyepiece Lens: This is the smaller lens at the rear of your scope, through which you look. Again, measure the diameter using a ruler or caliper.
Important Note: Always double-check your measurements before purchasing. Using the wrong size cap can result in a loose fit, offering inadequate protection, or a cap that won't fit at all.
Deciphering Butler Creek's Sizing System
Butler Creek typically uses a straightforward system that directly reflects the lens diameter. For example, a "40mm" Butler Creek cap is designed to fit a 40mm objective lens, and a "44mm" cap fits a 44mm objective lens. The same applies to eyepiece caps. Their product listings will clearly state the size. Look for this information on their website or retailer listings.
Common Butler Creek Scope Cap Sizes
While Butler Creek offers a wide range, here are some of the most commonly encountered sizes:
- 30mm: Often used for smaller scopes and some spotting scopes.
- 32mm: Another common size for various scopes.
- 36mm: A popular size, suitable for a wide range of scopes.
- 40mm: A frequently used size for medium to large scopes.
- 42mm: Less common but still available for specific scope models.
- 44mm: Often found on larger scopes and some tactical models.
- 50mm and above: These larger sizes are typically used for high-power scopes, long-range scopes, and some spotting scopes.
Beyond Objective and Eyepiece Sizes: Considering the Cap Type
Beyond the lens diameter, consider the type of Butler Creek cap. They offer several options, including:
- Flip-open caps: These offer quick access to your scope, ideal for rapid target acquisition.
- Twist-on caps: These caps provide a more secure seal against the elements.
- Lens covers: These are designed to offer broader protection for the entire scope, extending beyond just the objective and eyepiece lenses.
Where to Buy Butler Creek Scope Caps
Butler Creek scope caps are widely available from various retailers, including online marketplaces, sporting goods stores, and gun shops. When buying online, carefully review the size specifications to ensure compatibility with your scope.
Conclusion: Protecting Your Investment
Selecting the correct Butler Creek scope cap is essential for safeguarding your scope from dust, debris, moisture, and potential damage. By accurately measuring your scope's lenses and understanding Butler Creek's sizing system, you can choose the right caps to protect your valuable optics and ensure years of reliable performance. Remember to check the product description carefully before purchasing to avoid compatibility issues.
