Laser bore sighting is a popular method for quickly aligning firearm scopes and red dots. But how accurate is it really? The short answer is: it depends. While it offers a significant advantage over older methods, its accuracy is influenced by several factors, and it shouldn't be considered a replacement for proper zeroing at the range.
Understanding Laser Bore Sighting's Limitations
Laser bore sighting tools utilize a laser that projects a beam down the barrel, providing a visual reference point for scope alignment. While convenient and faster than traditional methods, several factors can impact accuracy:
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Laser Alignment: The most crucial factor. Even a slight misalignment of the laser within the bore sighter itself will translate into significant errors at longer ranges. Manufacturers strive for precision, but variations exist. Always check your specific bore sighter's specifications for its claimed accuracy.
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Bore Condition: A damaged or fouled barrel can affect the laser's path, leading to inaccurate readings. Clean your barrel thoroughly before using a laser bore sighter for optimal results.
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Scope Mounting: Improper scope mounting can introduce errors regardless of the bore sighting accuracy. Ensure your rings and mounts are properly torqued and the scope is securely attached.
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Temperature: Extreme temperatures can slightly affect the laser's trajectory. While not usually a major concern, it's a factor to consider, particularly in harsh environments.
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Laser Battery: A weak battery can cause the laser to dim or flicker, making accurate aiming more difficult. Always use fresh batteries.
What to Expect from Laser Bore Sighting
Laser bore sighting will typically get you "on paper" at shorter ranges – meaning your shots will land somewhere on the target, usually within a reasonable grouping. However, don't expect pinpoint accuracy. Laser bore sighting is meant to be a preliminary step, not a final zero. You will still need to fine-tune your scope's adjustments at the range using live ammunition.
Think of it as getting you close enough to confidently start shooting at a target without wasting excessive amounts of ammunition during initial adjustments. It's a crucial tool to reduce the time spent on the range for initial scope alignment.
The Importance of Proper Zeroing at the Range
Regardless of how well your firearm is laser bore sighted, always follow up with proper zeroing at the range. This involves firing several shots at different distances and making precise adjustments to your scope's windage and elevation turrets until you achieve the desired point of impact. This is the only way to ensure accurate and consistent shot placement.
Conclusion: A Valuable Tool, Not a Perfect Solution
Laser bore sighting offers a valuable time-saving method for initial scope alignment. It reduces the frustration of initial sighting, significantly speeding up the zeroing process. However, it's crucial to remember its limitations and always follow up with precise zeroing at the range. This multi-step approach ensures you achieve the accuracy and consistency you expect from your firearm. Consider it a valuable tool in your arsenal, but not a replacement for proper range time and zeroing procedures.
