adjustments than having to deal with the delicate internal workings inside the scope. The basic concept of adjusting the
The Cold Shot M.O.A.B. is mounted on top of a standard full-length Mil-Spec M1913 Picatinny rail.
that it is a more common phenomenon than the scope manufacturers would like customers to believe. Clearly, this situation can become
a bit trying for anyone attempting to initially zero a rifl escope, but for those shooters who prefer to simply “dial in” their shots at long range it can become a major issue to contend with. Think about it – a couple of inches at 100 yards translates into a foot at 600 yards. The good news is that there is a brand new and much more reliable alternative to frequently moving your scope reticles around. It is called the “Minute of
Angle Base,” or “M.O.A.B.” for short. When installed on a rifl e the M.O.A.B. allows the shooter to compensate for the trajectory drop of their bullets in a mechanical way rather than optically. In other words, rather than moving the reticle up and down to adjust your scope to the range you can achieve the same results by elevating or lowering the rearmost portion of the M.O.A.B. Doing so eliminates unnecessary wear inside the scope; it provides you with a greater range of adjustability; and to my way of thinking it is a more reliable and dependable way to make those
point of bullet impact through the use of the mounting base is not a new one. It has its roots within the fi rst production rifl escope built in 1855 by William Mal- colm. Malcolm was the fi rst to offer an adjustable ocular lens and he did so us- ing his own adjustable mounting system that moved the entire scope tube verti- cally or horizontally in order to align it with the target. Jim Mullin of Cold Shot LLC, of course, went much further in his development of the M.O.A.B. system than Malcolm did over a century and a half ago. Unlike Malcolm’s some- what crude and rudimentary attempt, Mullin’s system comes with the CNC precision necessary to achieve the high- est degree of accuracy at ranges never conceived in Malcolm’s days. The M.O.A.B. system is designed
to be used in conjunction with a normal full length Mil-Spec M1913 Picatinny rail. When in place it allows the shooter to dial-in the scope simply by turning an index dial located at the rearmost por- tion of the M.O.A.B. I hesitate to make such a rude comparison, but the index wheel of the M.O.A.B. actually appears similar to a scaled down version of the old time label-maker dial. You know the kind – where a turn of the wheel allowed you to select the letter you are looking for. Obviously, there was never a label-maker ever built that came with the precision, close tolerances, and qual- ity of construction that are inherent in the M.O.A.B. There are three models of Cold Shot M.O.A.B. to select from: 150 MOA, 300 MOA, and a specifi c unit intended for M-1A/M-14 rifl es. In most shooting situations I believe the Model 150 MOA is likely the best choice and provides an adequate amount of ad- justment for most rifl es and shooting scenarios. The 300 MOA model is pos- sibly best suited for applications like the Barrett M-87A1 and as such it is ¼ -inch taller overall. The mounting process is a rela-
While the light recoil of the 6.5 Creedmoor didn’t warrant using a Caldwell Lead Sled on that basis, it did provide an excellent solid rest for the long- range shooting.
Page 50 Winter 2012
tively easy one. Used in conjunction with the dovetail design of the Picatinny rail, there are three cross bolts that se- cure the M.O.A.B. to the Picatinny. In the mounting process these bolts must fi rst be removed, then the M.O.A.B. can be slid into place from either end of the
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