Introduction
The frustration of endless adjustments, the wasteful expenditure of ammunition, and the sheer time-sink of getting your rifle or handgun zeroed in—these are experiences many shooters know all too well. Fortunately, there’s a solution that can significantly streamline the process: the laser bore sight. This invaluable tool offers a quick and efficient way to align your sights, reducing the time and rounds needed to get on target. The ability to confidently and quickly bring your firearm into alignment is a skill any shooter can and should learn.
In this guide, we’ll delve into the practical applications of a laser bore sight. Whether you’re a seasoned marksman or just starting your journey in the world of firearms, this article will equip you with the knowledge to successfully use a laser bore sight, saving you valuable time, money on expensive ammunition, and the inevitable stress that can come with sighting in your weapon. We’ll cover everything from understanding different types of laser bore sights to a step-by-step guide on using them safely and effectively. Prepare to elevate your shooting proficiency and embrace a more efficient approach to getting on target.
Understanding Laser Bore Sights
At their core, a laser bore sight is a device that emits a laser beam, usually red, down the bore of your firearm. This beam projects a dot onto your target, allowing you to visualize the point of impact. The alignment of this dot in relation to your sights (or scope reticle) is crucial for accuracy. While live-fire adjustments are always necessary to perfectly fine-tune your zero, a laser bore sight serves as an excellent preliminary tool. This tool allows you to save many rounds. It also offers convenience since you can quickly get your sights close.
When considering the purchase of a laser bore sight, the first thing to understand is that there are different types, each with its advantages.
Cartridge-Based Bore Sights
These are perhaps the most straightforward type. They resemble a live cartridge and are designed to be chambered in your firearm’s barrel. Inside the “cartridge” is a laser module powered by batteries. Once chambered, the laser emits a beam down the bore. These are generally easy to use, as long as you can find a model that works with your specific caliber. It is very important to remember to treat these just like a live round and always handle them with the utmost care.
Arbor/Spud-Based Bore Sights
These provide a more versatile approach. They typically consist of a laser module with an arbor (a cylindrical extension) that fits into the muzzle. Multiple sized arbors, also known as spuds, come with this system. The user then selects an arbor that is the correct size for the caliber of their weapon. This type can be used on a wide variety of firearms, as long as you have the correct adapters.
Magnetic/Adapter-Based Bore Sights
Another design uses magnets or adapters that clamp onto the muzzle of your firearm. These are usually easier and faster to use than the arbors, since they don’t require fitting anything into the bore. Always make sure that these types are securely attached to the muzzle.
Understanding the components of a laser bore sight is important. The essential parts include:
The Laser Module
This is the heart of the system, producing the laser beam.
Batteries
These power the laser module.
Adapters (if applicable)
These ensure that the laser bore sight fits your firearm’s specific caliber or barrel diameter.
Safety First is not just a motto; it is the fundamental principle when handling firearms. Before, during, and after using a laser bore sight, adhere to these crucial safety measures:
Always Treat the Firearm as Loaded
Even if you know it’s unloaded, treat it as if it were ready to fire.
Eye Protection is Non-Negotiable
Wear appropriate eye protection (safety glasses) at all times when using a laser bore sight. Never look directly into the laser beam, and prevent any reflection back at your eyes.
Safe Handling Practices
Always point the firearm in a safe direction, keep your finger off the trigger unless you are actively aiming, and be aware of your surroundings.
Verify Unloaded Condition
Before inserting or removing the laser bore sight, double and triple-check that the firearm is completely unloaded.
Safe Environment
Work in a well-lit area, free from distractions.
Storage
Always store both your firearm and laser bore sight in safe, secure locations.
Preparation Before Using a Laser Bore Sight
To ensure a smooth and successful bore sighting experience, you’ll want to gather everything you need.
Safety Checklist: Always, always follow these precautions.
- Is the firearm unloaded, and has it been verified as such?
- Are you and those around you wearing eye protection?
- Is the firearm pointed in a safe direction?
- Are you working in a safe environment?
Gathering Your Supplies
- The laser bore sight itself.
- The correct caliber adapters (if using an arbor or spud-based system).
- A screwdriver or Allen wrench (for scope adjustments).
- A target (at a suitable distance).
- Eye protection (safety glasses).
- Optional: Weapon cleaning supplies (if you choose to clean the bore before starting).
- A stable surface to rest the firearm (e.g., a gun vise, sandbags).
Preparing Your Firearm
- Unload the Firearm: The first and most important step is to ensure the firearm is completely unloaded. Remove the magazine (if applicable), open the action, and visually and physically inspect the chamber to confirm that it is clear of any ammunition.
- Secure the Firearm: Place the firearm in a stable position. This is usually done with a gun vise or sandbags. This minimizes any movement during the sighting process, which will maximize accuracy.
- Access the Bore: This step depends on your firearm. Rifles and some handguns usually require a simple process of opening the action.
- Clean the Bore (Optional): While optional, a clean bore can improve accuracy. Run a cleaning rod with a bore brush down the barrel to remove any debris. Follow up with a patch to remove any remaining residue.
Step-by-Step Guide to Using a Laser Bore Sight
Now that you’ve prepared your firearm and gathered your supplies, let’s get started with the actual process of using a laser bore sight. The specific steps will vary slightly depending on the type of laser bore sight you have.
Inserting the Laser Bore Sight: (Type-Specific Instructions)
- Cartridge-Based: Insert the laser bore sight into the chamber, exactly as you would a live round. Be sure to follow all safety protocols. Close the action gently.
- Arbor/Spud-Based: Select the correct adapter (arbor or spud) that corresponds to your firearm’s caliber. Firmly but gently insert the adapter into the muzzle of the barrel. Ensure that the adapter fits snugly but does not obstruct the bore.
- Magnetic/Adapter-Based: Attach the appropriate adapter to the muzzle of your firearm. Ensure it is properly aligned and securely fastened.
Powering On the Laser Bore Sight
Once the laser bore sight is correctly installed, activate it. The process will depend on the design of your system. Usually, this involves pressing a button, twisting a switch, or inserting a battery. Refer to the manufacturer’s instructions for specific details. Some systems have a visible power indicator to let you know that the laser is on.
Setting Up the Target
- Distance Matters: Choose a safe and appropriate distance to place your target. For most rifles and handguns, the optimal distance is usually twenty-five yards. A longer distance will be needed with higher-powered optics to verify the sight-in.
- Target Placement: Place your target at your chosen distance. Ensure the target is securely mounted.
- Center the Dot: Carefully center the laser dot on the target. The dot should be easily visible, and not distorted by the laser module.
Adjusting Your Sights/Scope
- Observe the Alignment: Look at the target and carefully observe the location of the laser dot in relation to the crosshairs (or sights) on your scope. Do not adjust your firearm if it has standard iron sights. Adjust the laser dot to the center of the sight or scope.
- Make Adjustments: Now, it’s time to adjust your scope or sights. The goal is to move the crosshairs to the same place as the laser dot. Turn the adjustment turrets on your scope (or adjust the sights) until your crosshairs (or sights) align with the laser dot.
- Windage: Windage adjustments move your point of impact horizontally. If your shots are impacting to the right of the target, you will need to move the crosshairs to the right. Most scopes have a ‘windage’ turret that you use for this purpose.
- Elevation: Elevation adjustments move your point of impact vertically. If your shots are impacting low, you will need to raise your crosshairs. Most scopes have an ‘elevation’ turret that you use for this purpose.
- Follow the Numbers: Most scopes have direction indicators on the turrets (e.g., “UP,” “DOWN,” “L” and “R”).
Checking and Fine-Tuning
- Remove the Laser: After making your initial adjustments, remove the laser bore sight carefully from your firearm.
- Conduct a Dry-Fire Exercise: With the laser bore sight removed, maintain your sight picture and dry-fire at the target, using a safe and reliable trigger pull. This checks for consistency.
- Optional: First Round: After dry-firing, carefully fire a few rounds at the target to confirm your zero. If your rounds are consistently off target, make any necessary adjustments to your scope or sights.
- Repeat if necessary: The above steps can be repeated to ensure that the sights and laser bore sight are aligned.
Troubleshooting Common Issues
Even with the best equipment and techniques, problems can occur. Here are some common issues and how to solve them.
Laser Not Turning On
- Check the Batteries: The most common cause. Replace the batteries with fresh ones.
- Correct Insertion: If you’ve replaced the batteries, make sure they are installed correctly.
- Check for Physical Damage: Examine the laser bore sight for any physical damage that may have occurred.
Laser Dot Moving/Inaccurate
- Secure Firearm: Make certain that your firearm is securely mounted and stable.
- Adapter/Laser Fit: Ensure that the adapter (if used) fits correctly into the bore, or that the laser bore sight is properly chambered.
- Re-check Target Alignment: Ensure your target hasn’t moved.
- Movement: Be sure to check and re-check that nothing is moving while the adjustments are being made.
Difficulty Adjusting Sights
- Correct Turret: Make sure you’re adjusting the correct turret on your scope.
- Scope Instructions: Review the manufacturer’s instructions for your scope.
- Higher Precision: If you are using high-end optics, you may want to upgrade to the better quality options available.
Considerations and Limitations
It’s important to understand the limitations of laser bore sighting.
- Starting Point: A laser bore sight is designed as a starting point, not a replacement for live-fire sighting. You must always confirm your zero with live-fire shooting.
- Range Limitations: The effective range of the laser beam is limited.
- Environmental Factors: Bright sunlight can sometimes make the laser dot difficult to see. This is important to remember when sighting in a new scope.
Conclusion
Using a laser bore sight is a valuable skill, making it easier for you to sight in your weapon. By mastering the techniques outlined in this guide, you’ll be able to quickly bring your firearm’s sights into alignment. Remember to begin by ensuring that all safety precautions are in place. Understanding the different types of laser bore sights, carefully preparing your firearm, and following the step-by-step process will empower you to achieve quick and efficient sight-in. Not only will you save yourself the expense of expensive ammunition, but also the time and effort needed.
Please remember to always prioritize safe gun handling practices. We are not liable for any use or misuse of firearms based on the information provided. Follow all local laws and regulations.
