With variable power scopes becoming increasingly more popular in the past few years being able to use the scope effectively throughout its entire magnification spectrum is the end state. For the most part this only applies to those that are true one power, like the SR-4C and SR-8C that I helped develop with US Optics. I mounted upwards of three dozen scopes on AR style rifles in 2014 for various people. Generally, from out of the box to shooting its a sub 15 minute ordeal, heres how I do it; Put the scope on max power and using the ocular lens set reticle focus so that it is crystal clear to your eye. Do this while holding the scope to a white and well lit background. The sky works good as does a plain white wall in the house. Keep in mind that if anyone else looks at the reticle it may appear to them to not be in focus, this is the natural differences in each persons eye and perception. Always do it for you. Set the parallax knob (if applicable) for max power and at the yard line youre zeroing at. Remember that parallax changes as magnification changes for different distances. Typically speaking, all the modern variable powers have a fixed parallax and this isnt a concern. Use quick detach mounts only on AR style platforms (have back up irons too), I believe Bobro makes the best one Ive ever seen and I use them on all mine. They have an ingenious 1 inch elbow Allen wrench that prevents over torquing of the scope ring screws. For bolt guns I swear by Badger Ordnance rings. They have been the standard for me and mine for well over 20 years. Choose a rail slot for your QD mount and place the scope in the mount without rings and simply hold it with your thumb as you determine eye relief. This is the longest process in mounting the scope. Adjust variable power scopes from max power down to one power to determine the best eye relief and the best rail slot for the QD mount. The biggest piece of advice that I have is that true one power scopes need to be mounted a little further forward than what most people would do on a scope that doesnt have true one power, like a 3-9 or such. The reason for this is so that we can take advantage of the fact that the scope does have only one power, e.g.- we can shoot it as fast as a red dot at close distances. In effect, we basically want to get the same look that you have when using an aimpoint or any tube style red dot (see Picture) That said, scope shadow makes very little difference on one power when using a daytime visible red dot or a dark ring, ala a modern-day RDS. When people mount a variable power scope that has true one power too close to theyre eye they can never get the speed out of the optic that is possible. Note the position of the scope in the mount and attach one ring with two opposite located screws just for holding it in place so that it doesnt move. Use a level or pitch indicator to plumb if you have a flat area on your scope, otherwise you can use multiple products on the market for plumbing the scope. Once plumb, use blue Loctite and begin and X pattern tightening of the four screws on the rings. Alternate between two opposite facing screws on the front ring and two opposite facing screws on the rear ring and maintain an even gap between rings and mount. 15 inch pounds for the screws on the rings. 60 inch pounds for the nut on traditional scope rings (if applicable) Paint Mark the rail where your QD mount goes. Zero at 100 yds.
Posted on: Sun, 04 Jan 2015 17:36:00 +0000
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