The Sightmark laser boresight is a brass in-chamber alignment tool for rifles chambered in 7.62×54R. It projects a visible red laser point, has a manufacturer-specified sighting range of up to approximately 91 m and provides up to one hour of battery operation. Suitable for use Rifles chambered in 7.62×54R Preliminary alignment of riflescopes Checking mechanical sights Checking alignment after installation or transportation Preparing a hunting rifle before live-fire confirmation Checking sights on sporting and historic rifles Initial sight adjustment before visiting the range Reducing ammunition used during preliminary alignment Hunters, sport shooters and firearm collectors Why choose the Sightmark 7.62×54R laser boresight? Specifically designed for the 7.62×54R chamber Fits directly into the rifle chamber Requires no calibre adapter Visible red laser with a wavelength of 632–650 nm Manufacturer-specified sighting range of approximately 14–91 m Battery life of up to one hour Durable brass body Activated by tightening the battery cap Compact and easy to carry Helps reduce ammunition used during preliminary alignment Three AG3 batteries and a carrying pouch included Technical specifications Compatible calibre: 7.62×54R Cartridge type: Rimmed rifle cartridge Installation: Directly into the rifle chamber Laser type: Visible red laser Wavelength: 632–650 nm Output power: Less than 5 mW Manufacturer-specified sighting range: 15–100 yd / approximately 14–91 m Laser-dot size: Approximately 51 mm at 91 m Recommended preliminary alignment distance: Approximately 18–27 m Power supply: 2 × AG5 or 3 × AG3, depending on production version Approximate battery life: Up to 1 hour Operation: Threaded on/off battery cap Body material: Brass Operating temperature: –10 to +50 °C Intended use: Preliminary sight alignment and checking Ammunition: No Supplied with Sightmark 7.62×54R laser boresight 3 × AG3 batteries Protective carrying pouch Instruction manual Frequently asked questions Is the SM39037 compatible with .308 Winchester or 7.62×51 NATO? No. The Sightmark SM39037 is intended only for the 7.62×54R chamber. The .308 Winchester and 7.62×51 NATO use a differently shaped rimless case and require another calibre-specific boresight. Can a rifle be fully zeroed with this laser boresight? No. The boresight provides a preliminary reference for aligning the sight with the bore axis, but it does not account for bullet trajectory, ammunition performance or the rifle’s actual point of impact. Final zero must always be confirmed with live ammunition at an authorized shooting range. How should the Sightmark 7.62×54R laser boresight be used? Confirm that the firearm is completely unloaded and remove live ammunition from the working area. Install the batteries, place the boresight carefully into the chamber and close the action slowly only until the device sits securely. Align the sight with the laser point and remove the boresight before loading or firing the rifle. In what conditions is the red laser easiest to see? The red laser point is easiest to see indoors, in shade or under reduced lighting. Its visibility can decrease in direct sunlight, so preliminary alignment is generally easier in a controlled-light environment. When is the Sightmark 7.62×54R laser boresight the right choice? This model is a practical choice for owners of 7.62×54R rifles who want to align an optical or mechanical sight with the bore axis before visiting the range. Its cartridge-shaped construction fits directly into a compatible chamber and provides a repeatable seating position without a separate adapter. A universal magnetic boresight may be more useful when working with several unrelated calibres. Dedicated models are required for .308 Winchester and 7.62×51 NATO because their chamber and case dimensions differ from those of 7.62×54R. Expert recommendation The 7.62×54R laser boresight is particularly useful after installing a riflescope or scope mounts. It quickly indicates whether the sight adjustment is in the correct general area before the first shot is fired. Use a clearly marked target at approximately 18–27 metres and work indoors or in shade whenever possible, as the red laser point may be difficult to see in direct sunlight. Always check the complete calibre markings on both the firearm and the boresight, including the letter R. It identifies a rimmed cartridge and distinguishes 7.62×54R from 7.62×51 NATO and .308 Winchester. Close the action slowly and never force the device into the chamber. After alignment, remove the boresight, take out the batteries for long-term storage and confirm the actual point of impact at a shooting range. Different ammunition brands and bullet weights may produce different impact points with the same sight settings. Faster preliminary alignment for a 7.62×54R rifle The Sightmark 7.62×54R laser boresight provides a convenient way to align a compatible rifle before live-fire testing. Its brass construction, visible red laser and calibre-specific design make it a practical accessory for owners of 7.62×54R rifles.
The Sightmark laser boresight is a brass in-chamber alignment tool for rifles chambered in 7.62×54R. It projects a visible red laser point, has a manufacturer-specified sighting range of up to approximately 91 m and provides up to one hour of battery operation. Suitable for use Rifles chambered in 7.62×54R Preliminary alignment of riflescopes Checking mechanical sights Checking alignment after installation or transportation Preparing a hunting rifle before live-fire confirmation Checking sights on sporting and historic rifles Initial sight adjustment before visiting the range Reducing ammunition used during preliminary alignment Hunters, sport shooters and firearm collectors Why choose the Sightmark 7.62×54R laser boresight? Specifically designed for the 7.62×54R chamber Fits directly into the rifle chamber Requires no calibre adapter Visible red laser with a wavelength of 632–650 nm Manufacturer-specified sighting range of approximately 14–91 m Battery life of up to one hour Durable brass body Activated by tightening the battery cap Compact and easy to carry Helps reduce ammunition used during preliminary alignment Three AG3 batteries and a carrying pouch included Technical specifications Compatible calibre: 7.62×54R Cartridge type: Rimmed rifle cartridge Installation: Directly into the rifle chamber Laser type: Visible red laser Wavelength: 632–650 nm Output power: Less than 5 mW Manufacturer-specified sighting range: 15–100 yd / approximately 14–91 m Laser-dot size: Approximately 51 mm at 91 m Recommended preliminary alignment distance: Approximately 18–27 m Power supply: 2 × AG5 or 3 × AG3, depending on production version Approximate battery life: Up to 1 hour Operation: Threaded on/off battery cap Body material: Brass Operating temperature: –10 to +50 °C Intended use: Preliminary sight alignment and checking Ammunition: No Supplied with Sightmark 7.62×54R laser boresight 3 × AG3 batteries Protective carrying pouch Instruction manual Frequently asked questions Is the SM39037 compatible with .308 Winchester or 7.62×51 NATO? No. The Sightmark SM39037 is intended only for the 7.62×54R chamber. The .308 Winchester and 7.62×51 NATO use a differently shaped rimless case and require another calibre-specific boresight. Can a rifle be fully zeroed with this laser boresight? No. The boresight provides a preliminary reference for aligning the sight with the bore axis, but it does not account for bullet trajectory, ammunition performance or the rifle’s actual point of impact. Final zero must always be confirmed with live ammunition at an authorized shooting range. How should the Sightmark 7.62×54R laser boresight be used? Confirm that the firearm is completely unloaded and remove live ammunition from the working area. Install the batteries, place the boresight carefully into the chamber and close the action slowly only until the device sits securely. Align the sight with the laser point and remove the boresight before loading or firing the rifle. In what conditions is the red laser easiest to see? The red laser point is easiest to see indoors, in shade or under reduced lighting. Its visibility can decrease in direct sunlight, so preliminary alignment is generally easier in a controlled-light environment. When is the Sightmark 7.62×54R laser boresight the right choice? This model is a practical choice for owners of 7.62×54R rifles who want to align an optical or mechanical sight with the bore axis before visiting the range. Its cartridge-shaped construction fits directly into a compatible chamber and provides a repeatable seating position without a separate adapter. A universal magnetic boresight may be more useful when working with several unrelated calibres. Dedicated models are required for .308 Winchester and 7.62×51 NATO because their chamber and case dimensions differ from those of 7.62×54R. Expert recommendation The 7.62×54R laser boresight is particularly useful after installing a riflescope or scope mounts. It quickly indicates whether the sight adjustment is in the correct general area before the first shot is fired. Use a clearly marked target at approximately 18–27 metres and work indoors or in shade whenever possible, as the red laser point may be difficult to see in direct sunlight. Always check the complete calibre markings on both the firearm and the boresight, including the letter R. It identifies a rimmed cartridge and distinguishes 7.62×54R from 7.62×51 NATO and .308 Winchester. Close the action slowly and never force the device into the chamber. After alignment, remove the boresight, take out the batteries for long-term storage and confirm the actual point of impact at a shooting range. Different ammunition brands and bullet weights may produce different impact points with the same sight settings. Faster preliminary alignment for a 7.62×54R rifle The Sightmark 7.62×54R laser boresight provides a convenient way to align a compatible rifle before live-fire testing. Its brass construction, visible red laser and calibre-specific design make it a practical accessory for owners of 7.62×54R rifles.
