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There's a reason the Sightmark .50 Cal Premium Laser Boresight is the go-to choice for people who shoot big caliber rifles. Zeroing a .50 BMG or similar heavy magnum is expensive, time-consuming, and hard on the shoulder. This tool changes that equation.
How the .50 Cal Laser Boresight Works
Load it into your chamber exactly like you would a live round, flip the switch, and a red laser dot appears downrange showing precisely where your barrel is pointed. You're not guessing anymore. From there, adjust your scope or sights to align with that laser dot without firing a shot. Once you've got your optics aligned, live fire becomes fine-tuning instead of a frustrating search for where your first shot landed.
That red laser projects to 15-100 yards with a dot size of about 2 inches at 100 yards, giving you a clear aiming reference on any target. The chamber insert design means it works consistently because it sits in the exact position a bullet would occupy. You get the same alignment every time without wobble or fit issues. Most first-time users find they're on paper within their first few shots, which saves rounds when ammunition costs what it costs.
The boresight is constructed from brass, a material that handles the chamber environment and repeated insertions without wearing out. It's compact and lightweight enough to toss in your range bag. Real shooting generates real wear, and this tool is made to withstand it. The on/off switch is simple and doesn't require calibration or adjustment.
Battery life runs about an hour per charge, which is plenty of zeroing time in a single session. Your included CR2 battery gets you started, and replacements are available everywhere.
The boresight projects a laser dot that shows where your bore is pointed without firing any shots. This lets you get your optics aligned before spending expensive .50 caliber ammunition. You still need to confirm your zero with live fire, but the boresight gets you so close that you'll use far fewer rounds to finish the job.
The red laser is visible in daylight conditions, but a shaded environment or lower-light setting will give you better visibility of the dot. If you're zeroing in full sun, consider using a reflective target to help see the laser more clearly, or plan your range session for morning or evening hours.
The brass construction is built to handle repeated chamber insertions and normal range use. Treat it like a precision tool and it will serve you through multiple rifles and seasons. Just keep the battery compartment cap tight and store it in the included carrying case when not in use.
This is designed for .50 caliber rifles with standard chambers. It loads exactly like a regular .50 round, so if your rifle accepts .50 ammunition, the boresight will chamber properly. If you have a custom or non-standard chamber, test the fit before relying on it at the range.
| UPC | 810119010582 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | SM39012 |
| Shipping Weight | 0.3375 |
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