Cant get scopes to zero.. always high and left (on calibration tool)

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ADHDCanuck

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Alright I'm confused here...

I'm mounting a burris 3-12x32 long eye relief scope on my mosin nagant (pictured below) using S&K Scope rings and mount. Beautiful setup.

I cant get it to zero. I have a bushnell professional kit, and according to the grid, with the scope turrets at max, the closest I can come is several sqaures high and left still... and thats with no room left on the scope for adjustment.


How do you reset this sort of thing?

I bought a falcon optics First Focal Plane scope and mounted it on my SVT40 using the addley precision mount system and had the same issue....
 
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Is the bore sight kit accurate with other guns and scopes? I have heard of more than a few boresighters being misaligned.

Can you remove the bolt and look through the barrel to center on a distant object, and then adjust the scope to match?
 
definitely not a shimming job. a scope should never be operated at its maximum adjustments.. theres no room to move. very weird...

The boresight is one of the better metal bushnell pro models, bought just a few weeks ago, and tested in the store on one of their rifles, but who knows...

Ive had this happen on several guns now, including with a scope on my SVT using a laser boresight.

The boresight works perfectly on my 17HMR Savage.
 
again, its a mosin, the ring set is custom made to fit the scope mount, and its not a matter of a tiny bit up/down for a shim.

like on several other firearms with two scopes, it is significantly high and left...consistently. with the scope at max adjust.
It would be foolish of me to shim it and run a system with a scope that has only a single setting, sitting with the turrets maxed out.

I should be zeroed at 100yards with a selection of scopes, with plenty of play left on the turrets.

Its very confusing as to how exactly this happens.

if i have to adjust it that much, I'll have to buy a different model scope mount from them, with a tactical base, then get the signature rings with offset inserts as you suggest...
 
Stevebot-7 said:
Is the bore sight kit accurate with other guns and scopes? I have heard of more than a few boresighters being misaligned.

Can you remove the bolt and look through the barrel to center on a distant object, and then adjust the scope to match?
Click to expand...

This. Most if not all of the bore sight kits aren't worth their weight in dog turds.
 
I've never needed a bore sight kit. Just center your turrets and go out shooting.
At 25 yards you should be on paper no matter how messed up things are then dial the turrets to be impacting center left and right and a couple inches low then move to 50 and repeat, once you are between an inch and two inches low at 50 yards you're ready to move to 100 yards.
Shouldn't take more than 10-20 rounds to be dialed in. If you are shooting from a really good rest you can set the rifle so the crosshair is back on the center of the target and then dial the turrets till the crosshair moves to the bullet hole.
Some people think that's a waste of ammo but I don't worry about a couple rounds not hitting where I aim.
This is the technique I use when installing a new scope on everything from a 22 up to my 338 Lapua and it's worked well so far.
 
You could go to the range and see if thats where you are actually hitting the target. Thenyou would know if its the sight kit or a feal prob. I dont know where you live but I would gladly help. I do comps and shoot out past 1000m and have tools for this. I have never had any probs.

Just an thought
 
I always buy the Millet rings that are windage adjustable. No bore-sighter either - I bore sight by removing the bolt, centering the bore on the target and making the scope line up with it. Never fail to have a first shot on target at 100 yds. Takes perhaps five shots to get it where I want it.
 
Andy said:
I always buy the Millet rings that are windage adjustable. No bore-sighter either - I bore sight by removing the bolt, centering the bore on the target and making the scope line up with it. Never fail to have a first shot on target at 100 yds. Takes perhaps five shots to get it where I want it.
Click to expand...

How do you find those Millett rings? The last set I had that looked the same as the Burris XTR rings seemed like the material was soft and I stripped out one of the screws even though I was using my torque driver.
I've never needed adjustable rings though and think that may just be another place that could induce inconsistent results (I'm not sure how those ones work though so maybe they are nice and solid once adjusted). A good solid (properly installed) mount and a quality optic and I've been able to zero every scope I've tried on every rifle that has passed through my collection.

Good luck OP, I'd go to the range and see where it's actually hitting.
 
cr5 said:
How do you find those Millett rings? The last set I had that looked the same as the Burris XTR rings seemed like the material was soft and I stripped out one of the screws even though I was using my torque driver.
I've never needed adjustable rings though and think that may just be another place that could induce inconsistent results (I'm not sure how those ones work though so maybe they are nice and solid once adjusted). A good solid (properly installed) mount and a quality optic and I've been able to zero every scope I've tried on every rifle that has passed through my collection.

Good luck OP, I'd go to the range and see where it's actually hitting.
Click to expand...

If you found the material soft and stripped out the threads, then you were either not using the Millett Angle-Loc™ Steel Rings to which I'm referring, or you torqued them far tighter than I do. I have them in use on several rilfes and they are rock solid.
 
That is a nice sold rest you have. take the bolt out and point the rifle out the window. Remove the bolt, look through the barrel and aim the barrel at some object. Then look through the scope and gently turn the knobs till the scope is aimed at the same object. This is a fairly good way to get the scope close to a zero, so you are on paper at 50 yards.
 
please dont laugh at me for this.

I tapped out the mosins front sight with a hammer and pin.... and added a rubber sheet under the rear ring... and the god damn thing zeroes fine.

It doesnt have a super wide range of adjustment left... but its not max adjusted either. Within easy usage between 50 and 250 yards I would say easily.

So...

chalk this one up to noobism.. mine. I bought another mosin to test it out and did the install three times with different methods and adjustments, figured out what it was...

on one gun, it zeroes fine with TONS of adjustment left...

on the other, its much closer to the max but still within tolerances now.

so i think i was right about misalignment, i just managed to correct it enough to make it work...

which is nice because this is a freakin PRISTINE 1932 mosin i used to make the archangel setup.... barrel and bore and chamber and bolt are EXCELLENT.

My other one is a 1943 in decentish shape.. but i wouldnt make a match rifle out of it with the slight pitting and slightly worn rifling in the barrel. Great shooter, but not world class.
 
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