Problems With Zeroing Scope

[pdh]

I have been switching out scopes on two of my rifles. Took off a 6x24 Burris Signature from my .308 and put it on my 22-250.
I have the Leupold two piece base on my 22-250.
The problem is....I just about ran out of windage adjustment to get the my windage zero...The windage adjustment is just about turned in as far as it will go.....
Now.....with these Leupold bases and rings....you can adjust windage with the back ring????????????????
Will this damage to scope in anyway if you adjust the back ring while the front ring is stationary.....????
I have just never had any problem like this.....Just took a Leupold off the 22-250....and ever had a bit of problems with that set up......and.........when I first put on the Burris on my .308....I had to shim the back ring to get the elevation in on the .308......wondering about the Burris scopes

Thanks..........

 

[Oldnamvet]

"Now.....with these Leupold bases and rings....you can adjust windage with the back ring????????????????
Will this damage to scope in anyway if you adjust the back ring while the front ring is stationary.....????"

If you move the back ring while the front is stationary, they will no longer be in alignment. This can ruin (bend) the scope. If you do this, or apply some shims, the front ring will have to be loosened and everything realigned before re-installing the scope again.

 

[hps1]

I have never used Leupold bases, but believe they are made like the Redfield bases/rings. If so, the front base has an oblong slot into which the male dovetail on the front ring is inserted and then turned 90 degrees to lock the base to the ring.

When the rear base adjusting screws are moved, the front ring is turned in the base and self-aligns with the rear ring so as not to place undue stress on the scope tube.

The alignment problem is probably not the scope, but how holes for scope bases are aligned w/bore on the rifle. Burris Signature rings are great for aligning a scope w/bore, especially on a problem rifle. They make three different thicknesses of bushings that can be used to compensate for improperly drilled holes or differences in receiver ring diameters.

Regards,
hps

 

[pdh]

Thanks Gents for the replies and help......Yes the leupold are pretty much the same base and rings as the Redfield....

I will take off the scope and double check the alinement of the rings...but I do not think it is a rifle problem....I have had 3 different scopes on this rifle and have not had a single problem............
I do not have an alinement tool that perfectly alines the rings either....I have just done it by eye.....

Thanks again...........

 

[Chuck Dye]

Leupold’s standard two piece bases are as described. Leupold’s dual dovetail bases can leave you buying new rings and bases. The mounting holes drilled into many older rifles, such as my 1953 Winchester Model 70, are not true to the bore axis. This still happens, though much more rarely, with newer rifles. I still have those dual dovetail rings bases, may yet find a suitable recipient for donation.

 

[rangerruck]

sometimes i have to move front ring to back, vice versa, then turn one ring 180 degrees, test, turn it back, turn the other ring, test, turn it back, etc. , til i find the setup it likes best.

 

[hps1]

That is the beauty of the Burris Signature rings. They are made to fit Redfield, Weaver, etc. bases and use a plastic insert between the steel ring and the scope. These inserts are available in three different sizes to provide up to .030" offset in any direction. So far have not found a rifle that this will not allow scope to be mounted at optical zero, giving maximum adjustment for elevation and windage.

I was worried that the plastic insert might allow slippage of scope in heavy recoiling rifles, but have them on three different rifles, including a 338 Win Mag and a 375 h&h and they all hold zero just fine. They cost a bit more than other rings, but sure make mounting a scope simple.

Regards,
hps

 

[pdh]

Guys...I have those Burris rings..........Looks like I will try them........
As I said....when I first got the burris scope...I got the Signature rings...put the set up on my 308....but had trouble with elevation.....took them off and used the leupold rings..shimmed the back ring though.....

I will try the burris sig rings......can not find directions though...is there any particular points that I need..to put these rings on.....

Thanks........

 

[hps1]

The rings go on the same as the Redfield or Leupold rings. The difference is in the inserts. There are three different sizes available from Midway USA @:

http://www.midwayusa.com/eproductpage.exe/showproduct?saleitemid=712472

The following quote from Midway's on line catalog describes how the inserts work:

Swapping the standard inserts with a pair of offset inserts will move the point of impact approximately 5" at 100 yards for the .005 inserts, 10" for the .010 and 20" for the .020. This will allow a gun to be sighted in that cannot be zeroed with the available windage and elevation adjustments in the scope. For serious shooters, the optional offset inserts allow a scope to be brought almost to complete zero, then using the windage and elevation adjustments only for the final, fine adjustment. This keeps the erector tube centered in the scope for improved scope clarity and performance.

The inserts can be rotated within the rings to gain windage, elevation, or both. Handiest things since pockets on shirts.

Regards,
hps

 

[CB900F]

Pdh;

Here's a cheap tip. Go to a machine shop & get a one foot, 14", whatever reasonable length they have in scrap, 1 inch steel bar. have them chuck it in a lathe & use some emery cloth to knock all the scale off it. This should turn it down to about .998". Pay the man the $10.00 or so he's gonna want.

Now, take your tool home & use it to turn in rings without worrying about damaging the scope. Align rings with it. Wow!! It's easy. Easy to see misalignment, easy to lap rings, easy to use the windage adjustment on the rear base & know the front turned, 'cause the bar didn't bend.

Low cost, no worry, what's not to like?

900F

 

[gezzer]

Jeesh , just center the reicticule by counting the clicks stop to stop then go back half of thrm. Then use the "ADJUSTMENT" screws on the rear mount to zero you windage. That is what they are made for. You will not hurt the scope.:banghead:

 

[pdh]

Hey gezzer.........as I said....I am rather a novice on a situation like this...........seems you should have posted awhile back......I asked that question in my first post....so Thanks alot.........

I have a $450.00 scope that I sure do not what to take a chance to ruin....seems to me.....it takes quit some torque to turn that front ring into postion.....I just do not want to take any chances .........Jeesh.............