Chamber the Sightmark® 6.5x55 Boresight in your 6.5x55 rifle like a regular cartridge, and a red laser dot shows exactly where you're aiming.
The Sightmark laser boresight is a brass in-chamber alignment tool for rifles chambered in 6.5×55 Swedish. 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 6.5×55 Swedish Preliminary alignment of riflescopes Checking mechanical sights Checking alignment after installation or transportation Preparing a hunting rifle before live-fire confirmation Initial sight adjustment before visiting the range Reducing ammunition used during preliminary alignment Hunters and sport shooters Why choose the Sightmark 6.5×55 laser boresight? Specifically designed for the 6.5×55 Swedish 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 Batteries and carrying pouch included Technical specifications Compatible calibre: 6.5×55 Swedish 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 6.5×55 laser boresight Compatible battery pack Protective carrying pouch Instruction manual Frequently asked questions Is the SM39027 compatible with 6.5 Creedmoor or 6.5 Grendel? No. The Sightmark SM39027 is specifically intended for the 6.5×55 Swedish chamber. It is not compatible with 6.5 Creedmoor or 6.5 Grendel because their cartridge-case and chamber dimensions are different. 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 6.5×55 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 6.5×55 laser boresight the right choice? This model is a practical choice for owners of 6.5×55 Swedish 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 other 6.5 mm cartridges, including 6.5 Creedmoor and 6.5 Grendel, because their chamber dimensions differ. Expert recommendation The 6.5×55 Swedish is widely used in hunting and sport-shooting rifles, many of which are fitted with optical sights. An in-chamber laser boresight is particularly useful after installing a riflescope or mounts because it quickly indicates whether the adjustment is in the correct general area before the first shot is fired. A clearly marked target at approximately 18–27 metres provides a practical starting point. Always check the calibre markings on both the firearm and the boresight before insertion. Do not choose a boresight solely by bullet diameter—6.5×55 Swedish, 6.5 Creedmoor and 6.5 Grendel use similarly sized bullets, but their case and chamber dimensions are different. 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. Faster preliminary alignment for a 6.5×55 rifle The Sightmark 6.5×55 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 6.5×55 Swedish rifles.
The Sightmark laser boresight is a brass in-chamber alignment tool for rifles chambered in 6.5×55 Swedish. 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 6.5×55 Swedish Preliminary alignment of riflescopes Checking mechanical sights Checking alignment after installation or transportation Preparing a hunting rifle before live-fire confirmation Initial sight adjustment before visiting the range Reducing ammunition used during preliminary alignment Hunters and sport shooters Why choose the Sightmark 6.5×55 laser boresight? Specifically designed for the 6.5×55 Swedish 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 Batteries and carrying pouch included Technical specifications Compatible calibre: 6.5×55 Swedish 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 6.5×55 laser boresight Compatible battery pack Protective carrying pouch Instruction manual Frequently asked questions Is the SM39027 compatible with 6.5 Creedmoor or 6.5 Grendel? No. The Sightmark SM39027 is specifically intended for the 6.5×55 Swedish chamber. It is not compatible with 6.5 Creedmoor or 6.5 Grendel because their cartridge-case and chamber dimensions are different. 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 6.5×55 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 6.5×55 laser boresight the right choice? This model is a practical choice for owners of 6.5×55 Swedish 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 other 6.5 mm cartridges, including 6.5 Creedmoor and 6.5 Grendel, because their chamber dimensions differ. Expert recommendation The 6.5×55 Swedish is widely used in hunting and sport-shooting rifles, many of which are fitted with optical sights. An in-chamber laser boresight is particularly useful after installing a riflescope or mounts because it quickly indicates whether the adjustment is in the correct general area before the first shot is fired. A clearly marked target at approximately 18–27 metres provides a practical starting point. Always check the calibre markings on both the firearm and the boresight before insertion. Do not choose a boresight solely by bullet diameter—6.5×55 Swedish, 6.5 Creedmoor and 6.5 Grendel use similarly sized bullets, but their case and chamber dimensions are different. 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. Faster preliminary alignment for a 6.5×55 rifle The Sightmark 6.5×55 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 6.5×55 Swedish rifles.
