I've got a new Savage Mk II .22 that I mounted a Primary Arms ACSS .22 scope on, the mount was the one that came installed on the Mk II. I've run out of elevation adjustment and am still about 6 inches low at 50 yards and I want it on at 50. I know I should shim the back of the mount but am looking for any advice on how much and what to use for the shim. Any help is appreciated.
Scope mount shimming advice
- Thread starter Spur0701
- Start date
stagpanther
New member
A .22 scope that you can't zero at 50 yds--probably the most common .22lr distance--something don't sound right with that.
I'd get an MOA rail/mount before shimming--which will never be consistent IMO in the long run.
I'd get an MOA rail/mount before shimming--which will never be consistent IMO in the long run.Here's groups at 25 and 50....though the 50 is subsonic and the 25 super. In both cases the point of aim is at the top of the bullseye box at the 12 O'clock position as indicated by the chevron I put in with my marker. The base is what was on the rifle, the rings are Weaver that I had on the shelf that if I remember correctly came from Midway. Could the problem be the rings?
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It is way off. 3 possibilities; the rings, the scope, or the rifle. Try to eliminate by swapping components.
Rifle problem is bent barrel. I had one milsurp rifle that shot left and low by as much as 39moa. Eliminate the rings and optics first.
-TL
Sent from my SM-N960U using Tapatalk
Rifle problem is bent barrel. I had one milsurp rifle that shot left and low by as much as 39moa. Eliminate the rings and optics first.
-TL
Sent from my SM-N960U using Tapatalk
tango1niner
New member
Those picture of the rifle, mount, rings and scope set up leave much to be desired.
Spur0701,
Per Tango1niner's comment, can you put an illuminated white background behind the rifle and retake the photo in profile so we can see the light gaps between the scope and rail? Of specific concern is whether the eyepiece bell might be elevated by sitting on the back edge of the rail.
Per Tango1niner's comment, can you put an illuminated white background behind the rifle and retake the photo in profile so we can see the light gaps between the scope and rail? Of specific concern is whether the eyepiece bell might be elevated by sitting on the back edge of the rail.
stagpanther
New member
Best answer so far.
stagpanther
New member
Could be--I have a couple of PA ACSS scopes and they're pretty tough--my money would be on the rinky-dink scope rings failing before the scope.
If you zoom in on the rings you can see a notable gap in the front ring with the screws showing between the top and bottom halves, as well as what looks like an asymmetric wear mark on the scope tube in back of the front ring. Could be the rings simply weren't torqued correctly--or as others had mentioned the front scope bell be contacting the rifle/barrel/rail.
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Problem solved, seems as if it was the rings, or the rings being too low. After the first couple of post I ordered a set of Weaver high rings from AMZ, swapped them out. With the holidays have only gotten it to the range once at 25 yards and am still testing which ammo it shoots best with.....thanks for all the help.
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Blindstitch
New member
The first set of rings are my #1 most hated type of rings. I've thrown a bunch of those away.