Vector Optics ViperRay 6.5×55mm Cartridge Red Laser Bore Sight (SCBCR-13) — Fast, precise pre-zero for Swedish 6.5×55 chambers

The Vector Optics ViperRay 6.5×55mm Cartridge Red Laser Bore Sight is a caliber-specific collimator designed to speed up sight-in and save ammunition for rifles chambered in 6.5×55 Swedish. Machined from brass to match cartridge geometry, it centers the laser on the bore axis so you can align your scope or red dot at home or at the bench before live-fire. A bright 650 nm red Class IIIA (<5 mW) emitter provides a clean reference point; once you’re close, you finish with fine adjustments at the range to account for real bullet trajectory.

Because the body mirrors an actual cartridge, chamber fit is intuitive and repeatable, helping you verify optic changes, mounts, or transport bumps in minutes. The bore sight runs on three AG3/LR41 button cells (not included due to shipping regulations), weighs just 22 g, and measures a compact 53 mm in length—small enough to live in your range kit so it’s always on hand when you reconfigure optics or loan the rifle.

Key Parameters

• Caliber: 6.5×55 mm Swedish (cartridge-shaped chamber insert)
• Laser Class / Output: Class IIIA, <5 mW
• Wavelength: 650 nm (red)
• Material: Brass housing (cartridge form factor)
• Length: 53 mm (2.09″)
• Weight (net): 22 g (0.78 oz)
• Power: 3 × AG3 / LR41 button cells (not included)
• Packaging: Blister pack
• Model / SKU: SCBCR-13 (ViperRay series)

Real-World Use Cases

Pre-zero a new optic or mount

Install a fresh scope or red dot and use the laser point to bring your reticle close at a fixed indoor distance. When you get to the range, you’ll need only a few rounds to fine-tune.

Verify zero after transport

Long trips and rough handling can nudge mounts. Drop the bore sight into the chamber and confirm that your reticle still overlays the laser on your chosen reference point.

Multi-rifle consistency checks

If you swap optics between compatible rifles, the ViperRay helps you re-index and confirm alignment quickly before live-fire validation.

Mechanical & Build Highlights

• Cartridge-accurate geometry: Brass body mimics case dimensions for concentric chambering on the bore axis.
• Clean, visible reference point: 650 nm red dot aids coarse alignment of reticles and sights under typical indoor lighting.
• Compact & durable: Pocket-size unit with robust housing stands up to range bag carry and frequent use.
• Simple operation: Insert into chamber per the rifle’s safe-handling procedures; remove before any live-fire.

What’s in the Box

• ViperRay 6.5×55 mm cartridge red laser bore sight (SCBCR-13)
• User instructions
• Batteries are not included (shipping regulations)

Compatibility & Setup Notes

• Chambering: For 6.5×55 mm Swedish chambers only. Do not use in 6.5 Creedmoor, 6.5×57, or other 6.5-caliber variants.
• Safety first: Verify the rifle is unloaded and the chamber is clear before inserting the bore sight. Keep the muzzle pointed in a safe direction.
• Initial alignment: Choose a stable aim point (e.g., a small mark) at a modest indoor distance. Adjust your optic until the reticle overlays the laser.
• Final zero at the range: The laser projects a straight line, but bullets follow a curved trajectory. Always confirm and refine your zero with live ammunition at your chosen distance.
• Battery tips: Install three AG3/LR41 cells with correct polarity. Remove batteries between uses to prevent drain.

Technical Specifications

Summary

The ViperRay 6.5×55 mm Cartridge Red Laser Bore Sight puts your optic on paper fast and with minimal ammo. Its brass, cartridge-accurate body centers a bright 650 nm beam on the bore axis so you can pre-align at home and confirm at the range. For hunters, competitors, and meticulous rifle owners, it’s a compact, cost-effective tool that streamlines every sight-in.