To focus the objective lens, first loosen the lock ring at the end of the scope using the proper "spanner" wrench. The reticle should not appear to change position on the target If it does, parallax is present and the objective lens must be focused. While looking through the scope, move the head vertically and horizontally in small increments. Observe a target at a range of 300 yards. Parallax is defined as the apparent movement of an object as seen from two different points not on line with the object. Once proper focus has been set, the focusing ring should be locked by screwing in the rear portion of the eyepiece cell until tight Proper focus can now be set by rotating the knurled focusing ring. To focus the eyepiece, first unscrew the rear portion of the eyepiece cell several turns.
If such is not the case, the eyepiece requires focusing. If properly focused, the reticle should appear instantly, distinct and sharp. Look at a distant scene with unaided eye for several seconds and quickly glance into the eyepiece of the telescope. To check the focus, point the telescope at a distant scene or the sky and drape a white handkerchief over the objective end. The telescope should be focused to the individual's eye. Scope allows shooter to shoot point of aim/point of impact back to 1,000 yards. Steel tube with dull black chrome finish.Ĭapability of reading elevation and windage settings from the rear while shooting. Lenses HELR coating scope gathers in over 90 percent of available light Windage 60 minutes main adjustment + or -4 minutes with stops on either end to allow shooter to run windage on and off in the dark Reticle Mil dot duplex for range estimation and calculating leads on moving targets. Main Elevation Ballistic comeups Ml18 Lake City match ammunition 7.62mm caliber) īuilt-in Fine Tune Elevation + or -3 minutes to adjust for differences in shooter's zeros, temperatures, ammunition lots, ammunition This coating increases the light gathering capability to approximately 91 percent of the available light with uncoated lenses, 45 percent of the available light is lost in the scope. Lens surfaces are coated with a high efficiency, low reflection (HELR) film. Thus, 1/10-inch detail can be seen at 100 yards with a 10X scope. Magnification, combined with good optics design, permits resolution of this 1-inch divided by the magnification. The average unaided eye can distinguish 1-inch detail at 100 yards. They are pretty rudimentary but I thought these might be of use to someone else: I cut and pasted the parts I wanted to print and save.
I wasn't real happy with the my zeroing and adjustment of my CMP 10X Unertl on the M40A1 so I thought I'd actually run down the adjusting instructions from the USMC Sniper Manual (1981) version and read them.