Scope elevation maxed out! What to do?
Lining up a scope to hit paper this weekend with my son-in-law. We have maxed out the elevation adjustment and are still impacting target 12 inches low at 50 yards. What can I do to cure this ill?
"Save the Whalers, they need jobs too."
"Save the Whalers, they need jobs too."
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Either change out the scope mounts as one might be a little off (mfg defect?) or shim the scope on whichever end needs shimed and adjust it from there. 
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96'r,i've used a "cut to fit" piece of either a soda pop can or pie plate for a shim between the receiver and the scope base.They both worked fine for me,just my .02,Bob. 0 -
Taller Rings![8D] 0 -
It takes approx .001 of shim under the rear ring to raise the impact 1" @ 100yd. That's .024 in shims PLUS 1/2 of the scope travel or about .050 (roughly) of shim. Shimming here isn't the answer as somthing is definatly wrong with either the rifle or the mounts/rings.
1, Make sure that you have the correct mounts
2, Make sure that the mounts are not reversed (front mount on rear of receiver).
3, make sure the rings are the same height
4, if all that checks out correctly, it's time to get the manfacture of the rifle involved.
Some guys like a mag full of lead, I still prefer one round to the head.0 -
BE AWARE! That a crooked muzzle break will cause the bullet to hit the muzzle break, even a bad barrel crowning will do the same!
Check the end of the muzzle for bullet strikes!
It dont take much of miss threading to cause the problem.
If the muzzle shows no bullet strikes, then proceed with shimming the scope mounts.
I had to learn the hard expensive way.
Walte0 -
Is this a known good scope? If a new acquisition is the scope new or used?
Unless there is a problem w/ the mount(s) you should not have a problem with elevation unless the scope has a problem.
If the scope is known to be good, then you have to look at the mount(s) and ensure that it is level with the axis of the bore.
You don't say what your firing, but even a with a 22 being 12 inches low at 50 yds. with the elevation ran all the way out is indicating that the front part of the mount or the front mount is higher than the rear.
A down and dirty way to check things is to put the gun in a padded vise so that with a rod in the bore the bore is level, then check the level of the mount again by using a rod to span the rings. A small electricians "torpedo" level works the best. Working with a rod or dowel as close to the bore diameter as possible works best, but if your using a cleaning rod (ideally a one piece job) run it far enough that it can be held at the back end.
With the exception of the bull, target style barrels, the rest have a contour to them so you can't just put the level on the barrel.
If this don't work out for you have a gunsmith take a quick look at it.
If you only have time to do two things so-so, or one thing well ... do the one thing!0 -
I had this problem with a set of Ruger rings on a .220 swift. Couldn't get it on paper at 50 yds. Took back to the dealer and gave me different rings. 0 -
All Badger Bases have a 20 MOA forward cant, this helps to add range to the scope and allows full advantage of the rifles range. Torx screws are provided to secure the mount to the rifle.
"LIFE IS NOT A JOURNEY TO THE GRAVE WITH THE INTENTION OF ARRIVING SAFELY IN ONE PRETTY AND WELL PRESERVED PIECE, BUT, TO SKID ACROSS THE LINE BROADSIDE, THROUGHLY USED UP, WORN OUT, LEAKING OIL, SHOUTING GERONIMO!!"0 -
Try shiming the front scope base. Alum. Foil works well also and you have plenty of it. This will be the easiest thing to try. If that does not work return the mounts for another pair.
Hornet0 -
This can really be a complicated problem. You should be on target and still have adjustment left.
A friend of mine just went through this with a brand new rifle. Tried shims, new rings, new scope, none of which did any good. I think in the end, the problem turned out to be a bad installation of the scope base.
I have seen scopes bend due to over-adjustment in the rings and I have also seen scope reticles break causing the point of impact to either be off target or drift at random. In rare instances, the receiver can out of round due to damage or poor manufacturing which can really be difficult to diagnose.
Solving the problem may be a process of elimination until you are able to find the cause because so many factors can go wrong.
Best of luck,
Heavyiron[8D]0 -
Thanks all. We are taking it to the range tomorrow. My son-in-law said he had picked up a new set of bases so we'll see what takes place. We are shooting a Winchester mod 70 .270.
"Save the Whalers, they need jobs too."0
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