rifle scope issue

[Namibhunter]

Good day Gents

I have a small problem with my rifle scope. when i bought my rifle she had a Leopold VX2 scope on her with BIG mount( close to a inch high). i had no issues with the scope, however i removed it and replace it with a Redfield scope because i wanted higher magnification. and thats where the problem started.:banghead::banghead:for some reason, i could not get the rifle sighted in properly because i ran out of clicks. thusI was shooting about 10'' below the target. The quickfix was to insert makeshift shims on the rear mount, which sort of fixed the problem. ( the shims used were cut from empty softdrink cans). I felt uncomfortable with this and desided to replace my mounts with lower Leopold mounts , hoping this would fix the problem. however when sighting in the same problem persisted, again the softdrink shims came to the rescue.
Anyone out there know why this happens, because everything was perfectly level.
A gunshop owner friend of mine did point out to me that i tighten the mounts too much- could this be the issue.

looking forward to hearing from you guys.

rgds
Namibhunter

 

[JDGray]

I would lean towards a bad scope.... Try mounting it upside down, or just go 90 degrees, just to see where it hits. Something has to be limiting the erector mechanism in the scope. Definitely use a torque wrench, it is possible to cause an issue if you over tighten the rings.

 

[stringnut]

What rifle and what mounts? It may make a difference. Burris makes a series of rings called Signature. They have plastic inserts that are available with different amounts of offset. The previous reply is also a possibility. If the scope and mounting hardware have both been changed it is a crap shoot as to which is the issue. You may want to try your new scope in the old mounts and see if that solves the issue. Also if rings are not aligned properly it can put enought bind onthe scope to cause issues. Very rare , but, it does happen.

 

[Namibhunter]

Thanks Gents

the rifle is a CZ 550 American. it had the original mounts on( CZ mounts apparently). The scope is the Redfield Revenge which is made by Leopold.
I had the scope on the old mounts when the problem started, which is why I changed mounts.
I must say that I might have heavily overtorqued it when tighting the scope to the mounts. Everything was perfectly level though.

rgds
Namibhunter

 

[MistWolf]

Center the reticle before sighting in the rifle. When the erector set is to far to the left or right, or up or down, the erector set will start hitting the inside of the scope tube limiting adjustment range. In this case, the windage adjustment may be at one end of its range or the other. If that does not work, try a set of Redfield or Leupold mounts & rings with a dovetail front and windage adjustable rear

 

[stoky]

A canted scope base would be one (solid) fix. First verify that the elevation adjustment on the scope is functional. If your 10" low at 100yds, you'd want a 15 or 20 moa base.
I doubt that over tightening caused this, but it's not good. Use a torque wrench. Wheeler makes a nice one with a good set of bits, called the FAT Wrench.

 

[TTundra]

There's a little trouble shooting to be done. I've taken hundreds of scopes in returns over the years, and 99% of the time its not the scope..even on the 'cheapo's'. It usually lies in the mounts or rifle, and possibly the "mounter" or shooter. (no offense)

Firstly, did you fire the rifle when the Leupold VX-2 was mounted on it? If so, was it precise at the distances you shot? I've literally had rifles that had holes drilled off center, out of spec, etc. This isn't that uncommon. If the tooling wasn't sharpened recently, operator had a bad day, etc, mistakes happen.

Secondly, what distances are you trying to shoot? The redfield revenge is a low adjustment range scope (1" tube), depending on model. You may not be able to sight in at say, 50 yards with higher rings (example).

Also will echo above advice, torque months appropriately, good to mount a scope at factory zero, etc.

lastly, it very well could be the scope, but getting a little more info will help.

 

[Namibhunter]

Hi Guys

I did shoot with the Leopold, and only changed the scope out a few months later. she shot perfectly with the Leopold. I only changed out the scope because I wanted larger magnification because I occasionally go on 450mtr hunting trips. The new mounts were put on a few days ago.
When I sight in my rifle, i put a target on 25mtr and shoot until its zero=ed on 25mtr, I the go to 50mtr and lastly to 100mtr.
I actually got my lazer boresighter yesterday( the one that looks like a bullet). had to buy it on e-bay because you don't get boresighters readily over here.
No holes have been drilled in the rifle as it was not needed.

any more info I can give please let me know what is needed.

rgds
Namibhunter

 

[TTundra]

If the Leupold was a shooter, and you have tried to sight in at 25, 50m, and 100 meters with the Redfield, it might be an issue with the scope.

The only last thought I have is which Revenge did you go with? If the 6-18x, you will have limited internal travel. Which may account for not being able to sight in at 25 meters. If so, try right away for 50-75+ meters, if still no luck, return the scope.

 

[cdb1]

I've had to shim scopes before, for various reasons. Usually it is the receiver not being level, second is the rings not being perfect.

There is nothing wrong with shimming, however, I will only shim using a one piece base - it doesn't stress the scope tube. Shimming with two piece bases stresses the scope tube because the bases are on a different plane.

You also downgraded in scope quality which could be an issue.