New scope problem, give me your thoughts.

[PatMiles]

I recently bought a new 42 x 44 fixed power scope for a 22 rimfire bench rest rifle I have (Turbo V1 action, Muller 7 groove barrel, Harrell's tuner, Jewell trigger ,Lidgard stock, harrells offset 30 mm rings). I removed a NF 15-55 scope I had been using on the gun, put the new scope on, leveled it with the base on the receiver and then reinstalled the ring tops @ 18 inch/lbs. Ring tops went back on just as they came off
Took the gun out to zero it at 50 yards and discovered that I didn't have enough left windage for a zero.
Additional info:
The scope is a new in the box from a large distributor.
The scope is a discontinued model.
The scope rings were not removed from the rifle nor were they re-positioned from where they were set with the NF 15-55.
I bought the rings new from Harrels when I bought the rifle about 18 months ago.
The rings have never been lapped or modified.
I checked the left windage on the 15-55 and was able to rotate the knob 276 clicks (.125 moa/click, 34.5 moa) left before I ran out of left windage. The 15-55 was put in the safe exactly as it came off the rifle last Saturday.

Thoughts?

 

[Coyotefurharvester]

Does the new scope have 30 moa of windage adjustments?

 

[msinc]

Suggest you pull the scope off, set it to "optical zero" with vee blocks not just the turrets centered and then confirm turret zero. If you optically center the reticle and find that the turrets are centered {or very close, few are dead zero both ways} then you have another issue with the bases, rings or rifle.
If however you find that optical zero is either unobtainable or when achieved the turrets are way off then you have a scope that needs some work.
If you don't understand what all this means then I suggest you take it to someone that does. Best of luck sir!!!

Edit: I guess I should explain some...optical center is when the reticle is centered in the scope tube. You verify this by spinning the scope in Vee blocks while looking at a target. Optical center is achieved when the crosshairs stay on target while you spin the scope. {It's hillbilly, but a shoe box with vee's cut in the side will do}
Mechanical center is half travel on the reticle both windage and elevation. They must match and be very close. It is always best if they do, but many are not. The scope can be off a good bit and still zero and work, but it is not optimal that way. Of course if it is way off to the point it don't work then it's unusable. The higher the power, the more critical the match.

 

[KY_Windage]

I have run into discrepancies like that even switching from one NF scope to another. It is the main reason I run nothing but Burris Signature rings. By changing the inserts you can move your scope over, within the rings, enough to solve your problem.