Jim Leatherwood developed theART scopesduring the 60's to solve the important problem of range estimation. In Automatic Mode, the ART scopes can range targets of known dimension and compensate for the bullet's trajectory in one action. But, what if you wanted to increase the magnification more than what was given by Automatic mode?
It is critical to properly set the locking nut within the crescent groove of the standard bases. Although, the Malcolm 8X scope mounts have been calibrated at the factory to properly fasten to the provided crescent cut bases, you may need to adjust the friction screws in the mount. In this video, we’ll be going over how and when you should adjust the friction screws within the Malcolm 8X USMC mounts.
The PentaLux is a well built scope with features that are easy to use (side parallax, power throw knob, fast eye focus) and as always, the erector tube stabilizer. I sent 20 rounds down range that day without a hint of zero shift! I sent a 75 grain A-max bullet down range at 20 power only to have the second shot enlarge the same hole slightly.