Im just getting into PRS shooting. I have a vortex razer gen 2, 4.5x27x56 on order. Im looking at a spuhr mount for it. I currently have a tikka ctr in 6.5cm with a 20 moa base. The SP-4001 1.18" high rings will fit perfectly. I was thinking that I want this scope and rings to last and potentially go on another gun that I get. Is it worth considering a 1.35" or 1.5" high Spuhr mount so I can run it on a gun with AI rails or even a ar10? Or will It just look goofy? Does anyone have any suggestions?
I'm not one of the extremely experienced and knowledgeable members here...we have some real experts. I have been a long time shotgun clay target competitor, but with age I've recently moved to rifles and love it. So, given that you also seem to be more new than not to this sport (and I may well be wrong), perhaps my experience will resonate with you.
Bottom line is I am running as low of a set of rings as I can and still needed a KMW Loggerhead adjustable comb (cheek piece to rifle guys, I think...comb to stock smiths...I think haha) with extended posts to get a cheek weld on a Viper PST 3-15 x 44 in Leupold Mark IV medium (lowest they make) rings which are .84" to center.
This is on my Rem 700 5R SS Gen II in an HS Precision stock (need to send it to Joe Ducos...his contact info is on KMW's site...for install and he did a super job for a very reasonable price). When I first got this gun I tried to build up the comb with mole skin and electrical tape...but I needed almost 3/4" up, it felt half ass, and I couldn't get the bold out or a cleaning rod in without tearing it off.
At first I doubted myself on how much of a stock fit I needed as I know that clay target shooters, and especially high gun skeet shooters, are absolutely nuts about gun fit. But after I shot it a bit, I just couldn't see how to get really consistent results with my cheek bone just floating somewhere above the comb.
After I got the stock back and the gun put together with proper comb height, my shooting results on targets proved the benefit of a proper fitting stock. This has long been a point of emphasis for shotgunners but it seems (as in I don't firmly know this) that rifle guys have discovered the benefit of a proper fitting stock and a firm and repeatable cheek weld. You can see this in the adjustability of chassis as well as adjustable stocks from Manners, McMillan, and the like.
Now, I have jumped into the deep end and have a 6.5 Creed in a JAE-700 chassis and this chassis appealed to me for many reasons including the easily adjustable comb. And again, I have cranked it up and IMO limited opinion this kind of proper fit pays really big benefits. This gun has the absolutely wonderful ARC rings (just makes leveling a lot easier as the scope doesn't seem to move..or move much...when tightening the rings) with a Leupold Mk V 5-25 x 56 scope.
By the by, one thing I do like about the KMW kit is that much like shotgun comb kits (and all of my shotguns have either adjustable combs or have high Monte Carlo type combs) in that as well as being able to move the comb up/down, there is some side to side adjustment also. For a right handed shooter, this most likely (IME) means moving it to the right just a bit so as to not have to roll your head over to get behind the rib (shotguns) or scope (rifles). In clay target sports, having eyes level is very important as we swing the gun a lot. I have found in rifles its not as necessary but does seem to really improve comfort and makes dropping my head immediately to the right position much easier. I think (that word again) this would be described as making it easier and more repeatable to get your eye pupil directly behind the scope pupil.
The other thing I like very much about the KMW kit is that unlike shotgun comb kits, the posts come out of the removeable comb and not the base stock so you have clear way to get bolt and rod in/out. And Mr. Cross builds them like brick shit houses. Much more robust than on my comp skeet shotguns.
Personally, I would go with the lower rings for the Tika and if you get an AR-10, then get a mount suitable for that type of sporting arms and that style of stance/shooting.
But again, I'm not one of the highly experienced and knowledgeable guys on the Hide.
P.S. - Ok, I really am an idiot and just looked at the Tika CTR and see it has some sort of MC cheek piece and its not even clear how that stock is constructed and if it will accommodate having a KMW kit installed. If that's the case, I would just go for low rings that will get you behind the scope with good weld, if you can. The Leupold Mk IV medium rings at .84" were the lowest I could find in steel. I think I came across some lower rings in aluminum, but can't remember what or where. Best of luck.