Boresighting a rifle scope with a laser is the most efficient method to align your optic with the bore’s axis before stepping onto the range. This process minimizes wasted ammunition and frustration by ensuring your point of aim is closely aligned with your point of impact from the very first shot. While traditional methods often require a trip to the range and multiple sighting rounds, a dedicated laser boresighter offers a convenient solution for both the experienced shooter and the novice gun owner.
Understanding the Fundamentals of Boresighting
To effectively use a laser boresighter, it is essential to understand what the tool does and, more importantly, what it does not do. A boresighter is a precision alignment tool designed to approximate the optical axis of your scope relative to the barrel's bore axis. It projects a laser beam through the barrel, providing a visual reference point on the target that indicates where the bullet will strike at very close distances, typically around 25 yards. This process significantly reduces the need for guesswork but does not replace the final confirmation and fine-tuning that occurs on the firing line.
Preparing Your Equipment and Workspace
Proper preparation is critical for safety and accuracy when using a laser boresighter. Before beginning, ensure your firearm is completely unloaded and visually inspect the chamber and magazine well to confirm no ammunition is present. Wear eye protection, as the laser can pose a risk to your vision. You will need a stable shooting rest, such as a sandbag or a bench, and a target placed at the recommended distance for your specific boresighter, which is usually 25 yards. If you are using a muzzleloader or a rifle with a suppressor, ensure the device is compatible with your specific firearm configuration.
Step-by-Step Process for Laser Boresighting
Securing the Firearm and Inserting the Laser
The first physical step involves securing the rifle firmly in a rest to prevent any movement during the alignment process. Remove the bolt or open the action to expose the chamber. Carefully insert the laser boresighter into the muzzle end of the barrel. It is crucial to ensure the device is fully seated and seated straight; pushing it in crooked can produce inaccurate results. For tapered bores or large-caliber rifles, some models may require an adapter sleeve to center the laser beam correctly within the barrel.
Activating the Laser and Initial Alignment
Once the laser is securely inserted, turn it on according to the manufacturer's instructions. The laser will project a beam through the barrel and onto the target at the specified distance. Look through the rifle scope and you will likely see the room surrounding the target; your goal is to move the rifle within the scope until the red dot (or crosshair) aligns precisely with the laser dot projected on the target. Adjust the windage and elevation turrets on the scope slowly and methodically until the reticle sits directly on the laser impact point.
Fine-Tuning and Final Verification
After achieving a visual alignment through the scope, it is vital to verify the accuracy of the boresight. Fire a single round at the target while maintaining the same sight picture you used during the alignment process. Inspect the point of impact on the target. If the bullet strike is significantly off-center, you may need to repeat the boresighting process, ensuring the laser is properly seated and the scope adjustments are being made correctly. Small adjustments are normal, but a large discrepancy might indicate a mounting issue or the need for a different boresighter model.
