Nice gun, nice scope.
Be aware that some purists will tell you your rifle is not an AR10 as "AR10" is an Armalite rifle designation. Yours is a P308.
The answer to the first question depends on your level of comfort and your toolkit. At a minimum, to mount your scope properly, you need a torque wrench and a few levels (or a torque wrench and a set of feeler gauges.) If you have the minimum necessary tools, use the search function to find a method of mounting that you like. It is fairly simple. If you do not have the necessary tools to properly mount the scope, that complicates things. A gunsmith can mount your scope, if you are not comfortable performing the task. How well he will do it is a function of your gunsmith's skill. If you have a good smith, he will do a good job - it isn't particularly difficult.
I would NOT let a gun store mount the scope. I have seen more mistakes made by "gun professionals" than I have by newbies mounting a scope for the first time. (Newbies tend to under-torque their screws, for fear of damaging the scope; gun store employees usually have no such fear.)
When removing and remounting the scope, there will always be some change in point of impact. No one can (credibly) claim to sell a mount with an absolute 0 change in POI. So, always confirm zero after removing and remounting the scope.
Second question,most scopes have a focus ring on the ocular, your scope has no such function. When you rotate your ocular, the power changes. As such, you have no reticle focus function. That your reticle is always clear is a good thing. To focus the background, use the parallax adjustment on the left side of the saddle. If you are unclear on parallax, do a search, it is a relatively simple concept that needs to be understood. It is much less an issue at close range, but becomes dramatic at long range.
Yours is a nice scope. I am a Nightforce fan, I have owned that same scope and really liked it. The glass is good enough and the mechanicals are very near perfect (or should be, as that is the Nightforce reputation - and has always been true with my scopes.)
Let us know how the setup works for you. I like POF rifles, but have no experience with their 308 series.
------------- Freedom is something you take. Respect is something you earn. Equality is something you whine about not being given.
|