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Currently Unavailable Barrett Optical Ranging System for Leupold Mark 4 M1 Scopes 66000-8SYS is currently unavailable for purchase. Our team of product experts would be happy to recommend an alternative for you, or to answer any questions you might have. Please fill out our and a member of our team will respond within 24 hours!

Barrett Optical Ranging System for Leupold Mark 4 M1 Scopes 66000-8SYS Product Info

BORS Barrett Optical Ranging System for Leupold Mark 4 Scopes is an innovative development in long distance shooting. The Barrett BORS Optical Ranging Computer is an integrated electronic ballisticimage computer that couples directly to your Leupold Mark IV riflescope, acting as the upper rear scope ring. This Barrett ballistic computer puts science at your fingertips. From environmental factors to the angle of your rifle, the constantly-adapting Barrett BORS System instantly takes care of the data work so you can focus on the task of putting lead on target. The BORS Barrett Optical Ranging System for Leupold Mark 4 draws from thousands of tables and taking into account a number of real-time external factors, automatically giving the shooter the exact yardage at which a bullet will hit. This ballistics system from Barrett is like having an army of ballisticians behind every shot.

Once the distance to the target has been estimated, the Barrett BORS ballistic computer can be put into action by simply turning the elevation knob until the LCD displays the target's range. The BORS measures air temperature, barometric pressure and inclination to calculate the ballistic solution for the specified caliber and cartridge. Eliminates the need to count clicks as the distance is shown on the LCD screen.

Barrett 66000-8SYS Integrated Scope Computer fits the Leupold Mark4 M1 rifle scope. Designed primarily to withstand military operations, BORS is rugged and able to operate with a variety of calibers and rifles. Scope and scope rings not included. This model of Barrett BORS must be used with Barrett Scope Rings (sold separately).

Specifications for Barrett Optical Ranging System Leupold Mark 4 BORS:

WEIGHT:13 oz (370 g)
HEIGHT ABOVE CENTERLINE OF SCOPE:2.49" (6.32 cm)
WIDTH:3.25" (8.26 cm)
DISPLAY:2 lines, 12 character LCD
OPERATING TEMPERATURES:-4° F thru 158° F (-20° C thru 70° C)
OPERATING ALTITUDE:-1,000 thru 20,000 ft (-300 thru 6,100 m)
TILT RANGE:-90° thru 90° (2-degree resolution)
BATTERY:CR-123
BATTERY Life:40 hour minimum
BUTTONS:4 button
FITS:
  • Leupold Mark IV 3.5-10x40mm LR/T M1
  • Leupold Mark IV 4.5-14x50mm LR/T M1
  • Leupold Mark IV 6.5-20x50mm LR/T M1
  • Leupold Mark IV 8.5-25x50mm LR/T M1
  • Leupold Mark IV 8.5-25x50mm ER/T M1

Features of Barrett Optical Ranging System for Leupold M1 Scopes:

  • Fits Leupold Mark 4 riflescopes with M1 dials
  • Measures air temperature, barometric pressure, and bore line angle
  • Calculates a ballistic solution for a specific user-selected cartridge
  • Eliminates the need for "counting clicks" or using a handheld computer
  • Allows the shooter to focus on environmental conditions, assess the tactical situation, and quickly engage multiple targets at varying ranges
  • Takes the mystery out of bullet drop

Package Contents:

  • Barrett 66979 Barrett Optical Ranging System For Leupold MarkIV Scopes
  • Ballistic Software CD
  • USB to BORS data connection cable
  • 100 preloaded cartridge table
  • (1) CR-123 Lithium Battery
  • Mounting tool kit

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