Vector Optics ViperRay 7.62×54R Cartridge Red Laser Bore Sight (SCBCR-09) — Fast, repeatable pre-zero for Mosin-Nagant & other 7.62×54R rifles
The Vector Optics ViperRay 7.62×54R Cartridge Red Laser Bore Sight is a caliber-specific collimator that speeds up sight-in and saves ammunition for classic 7.62×54R rifles. Precision-machined from brass to replicate the 7.62×54R case, it projects a 650 nm red Class IIIA (<5 mW) laser along the bore axis so you can align a scope, prism sight, or red dot before live fire. Chamber the ViperRay like a cartridge, set your reticle to the laser at a known indoor distance, then confirm and fine-tune at the range—arriving “on paper” in just a few minutes.
Because the body mirrors a real cartridge, chambering is intuitive and concentric, producing a stable, repeatable reference point whenever you change mounts, move optics between rifles, or verify zero after transport. The unit is factory pre-centered for out-of-box accuracy, weighs only 31 g, measures 53.2 mm long, and runs on three AG3 / LR41 button cells (not included due to shipping rules). Slip it into your range kit and cut sight-in time on every session.
Key Parameters
- Caliber: 7.62×54R (cartridge-shaped chamber insert)
- Laser: Class IIIA, <5 mW output
- Wavelength: 650 nm (red)
- Material: Brass housing with durable finish
- Length: 53.2 mm (2.1″)
- Weight (net): 31 g (1.1 oz)
- Power: 3 × AG3 / LR41 button cells (not included)
- Factory alignment: Pre-set, centered beam
- Packaging: Blister retail pack
- Model / SKU: SCBCR-09 (ViperRay series)
Real-World Use Cases
New optics & fresh mounts
Install a new scope, base, or rings and use the laser dot to bring the reticle close at a fixed indoor distance. This puts your first live-fire shots on paper, reducing the number of rounds required to establish a precise zero.
Post-transport or seasonal checks
Travel, temperature swings, and rough handling can nudge mounts. A quick chambered check verifies that your reticle still overlays the laser reference point before you validate at the range.
Multiple rifles & shared optics
If you rotate optics among several 7.62×54R rifles, the ViperRay helps you re-index quickly and consistently, saving time when swapping between platforms.
Mechanical & Build Highlights
- Cartridge-accurate geometry: Brass case dimensions seat concentrically on the bore axis for repeatable alignment in 7.62×54R chambers.
- Bright, visible reference: 650 nm red laser provides a clean, high-contrast aiming point under typical indoor lighting.
- Factory-centered emitter: Delivered pre-aligned to minimize setup time and user error.
- Compact & durable: Pocket-size, robust construction stands up to frequent chambering during setup and maintenance cycles.
What’s in the Box
- ViperRay 7.62×54R cartridge red laser bore sight (SCBCR-09)
- User instructions
- Batteries not included (requires 3 × AG3 / LR41)
Compatibility & Setup Notes
- Chambering: For 7.62×54R chambers only. Do not use in 7.62×39, .308 Win/7.62×51, or other 7.62-caliber variants.
- Safety first: Verify the rifle is unloaded, magazine removed, and chamber clear. Keep the muzzle pointed in a safe direction at all times.
- Initial alignment: Choose a small reference mark at an indoor distance (e.g., 10–15 m). Adjust your reticle or sight until it overlays the laser dot.
- Finalize at the range: The laser travels in a straight line; bullets follow an arc. Always confirm and refine your zero with live ammunition at your chosen distance (e.g., 100 m), considering ammo type and environmental factors.
- Battery care: Install three AG3/LR41 cells with correct polarity; remove between uses to prevent drain. Avoid pointing the laser at eyes or reflective surfaces.
- Bolt operation: Insert and remove gently as you would a live round. Never attempt to fire with the bore sight in the chamber.
Technical Specifications
| Characteristic |
Specification |
| Caliber / Form Factor |
7.62×54R, cartridge-style chamber insert |
| Laser Class / Output |
Class IIIA, <5 mW |
| Wavelength |
650 nm (red) |
| Housing Material |
Brass |
| Length |
53.2 mm (2.1″) |
| Weight |
31 g (1.1 oz) |
| Power Source |
3 × AG3 / LR41 button cells (not included) |
| Factory Alignment |
Pre-centered laser emitter |
| Model / Series |
SCBCR-09 / ViperRay |
| Packaging |
Retail blister pack |
Summary
The ViperRay 7.62×54R Cartridge Red Laser Bore Sight is a compact, caliber-exact tool that streamlines every sight-in. Its brass, cartridge-accurate body and factory-centered 650 nm laser put your reticle close to true in minutes—so you can save time and ammunition, then finalize with a precise live-fire zero for your Mosin-Nagant or any 7.62×54R hunting rifle.
