Re: AR15 Scope ring ?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: russline</div><div class="ubbcode-body">Was wondering if you guys could give me some advice. I just purchased a DPMS Sweet 16 for hunting. I am going to put a Leupold vxii 4x12-50 on it and was wondering what height rings I would need to run. Any info would be greatly appreciated. Thanks in advance. </div></div>
The key to your satisfaction is a mount height which supports a proper stockweld; whereby, resting the full weight of the head on the comb, the eyeball is in alignment to the eyepiece. With mounts which are too low or too high getting a consistent eyeball/eyepiece relationship shot to shot is not possible; and, the consequence to this is increased parallax error. Parallax error is not easily discerned except in controlled conditions; and, although the target/reticle relationship may be seen as ideal, the shooter may still lose recognition for exactly where the barrel is pointed. Shooting at distance, the angularity of parallax can cause shot misplacement to be quite dramatic. This sort of error can be easily confused with wind error.
On an AR with an a-frame sight gas block, when a conventional scope is mounted correctly for a proper stockweld, the a-frame can distract the shooter, since the conventional scope's fixed focus point will not completely de-focus the a-frame. Today, however, Nikon and Leupold make scopes for AR's which do indeed put the a-frame so out of focus that it does disappear. Leupold and Nikon also offer uni-mounts which assure, in most cases, the shooter's stockweld, as well as proper eye relief. In some cases with a very large objective bell, which is over a float tube, a very high mount and stock with an adjustable comb will be needed to make the shooter to gun relationship workout; but, this is rare. At any rate, since your rifle does not have an a-frame gas block, you can certainly get by very well with the scope you mentioned; and, using something like the Leupold or Nikon AR uni-mount, stockweld will likely be very good.