Talking a semi-auto (IIRC Rem 7400 carbine) 30-06. First i put a cheapo Bushnell on and the windage was bottomed out with another 6 inches or so needed to dial in at 25yrds!! Scope has problems so my friend returned it and got a Nikon.

Put the Nikon on and same problem!! Base is a one piece leupold and rings are Leupold.

What could be causing this? I'm wondering if the base is off or if the mounting screws ont he receiver were not drilled properly.

Suggestions appreciated!!!

I have only seen this once on a remington 700. Bolt action 22-250.

The mounting screw holes in the receiver were not drilled properly.

Had to use the mounts where there is windage adjustments in the bottom screws rear mount. Dove tail up front.

Remington autos have always had problems and many of them are due to misaligned receiver-to-bbl attachment. I used to (back when I would even LOOK at one of these) see them with the bbls pointing downward or upward but seldom to the side. IIWY I'd check here first.

Also IIWY I wouldn't work on them any more, I've found them to be a real PITA with no guarantee of ever fixing them properly.
Regards, Joe

quote:

Originally posted by BISCUT:
the windage was bottomed out with another 6 inches or so needed to dial in at 25yrds!

You may need a traditional base(s) with the windage screws on the rear of the base. http://www.opticsplanet.net/le...pc-2-piece-base.html or http://www.opticsplanet.net/le...c-1-piece-bases.html Re-center the reticle in the scope and then see if you can center the group at 25 yards using only the external windage adjustment. Once that's done loctite them in place. Refine the zero using the scope's internal adjustments. If your buddy's luck is especially poor and you can't get the elevation done with internal adjustments you may need to shim the front or rear of the base. If you can't zero with the external and internal adjustments your buddy is hosed. It is a Remington 74xx after all...

Zero your scope (get the crosshairs centered) Get yourself a pair of Burris Signature rings with several different inserts. It sounds like some 20's may be necessary.

I had similar problems (mine was with the elevation) with my Savage 204. I zeroed the scope and used a combo of a 20 and a 10 and did minimal adjustments on the scope to fine tune things. Now I have nearly all of the vertical and horizontal adjustments in the scope.

This problem can occur with a crooked barrel on any rifle. A windage adjustable base and the Burris Signature rings with the spherical inserts will fix it.

quote:

Originally posted by mgoodrich:
I have only seen this once on a remington 700. Bolt action 22-250.

The mounting screw holes in the receiver were not drilled properly.

Had to use the mounts where there is windage adjustments in the bottom screws rear mount. Dove tail up front.

+1

I fell on ice last year w/ my squirrel rifle now my bushnell doesn't adjust for windage any more either! Replaced it w/ a VX-III. I also had a Remington 700 22-250 VLS That the mounting holes were crooked. Had to use burris posi-lines.

Make sure the mounting hardware is correct.

A friend drove himself nuts in a similar situation till he realized the scope mount was for a different model.

First thing is to put the windage of the scope at center. That is, turn the windage all the way to one extreme left or right. Then turn the knob to the other extreme and count the turns. Then turn the knob back half of those counted turns. That will roughly center the windage on the scope. Now take a good look at the scope bases. That leopold base should have 2 screws holding the rear ring. You can move the rear ring left or right using those screws. You will need to move it until the scope is pointing in the same general direction as the barrel. Its easier to do with a bolt action cause you can look down the bore and orient the bore to the scope cross hairs. That will get you on paper so you can complete the zero of your rifle.

quote:

Originally posted by BISCUT:
Talking a semi-auto (IIRC Rem 7400 carbine) 30-06. First i put a cheapo Bushnell on and the windage was bottomed out with another 6 inches or so needed to dial in at 25yrds!! Scope has problems so my friend returned it and got a Nikon.

Put the Nikon on and same problem!! Base is a one piece leupold and rings are Leupold.

What could be causing this? I'm wondering if the base is off or if the mounting screws ont he receiver were not drilled properly.

Suggestions appreciated!!!

In the title you mention "windage' but in the text body you talk of "bottmed out". "Windage is left and right. "Elevation" is up and down. Which is it? There is a lot of windage adjustment in a Leupold one piece base let alone in the scope. If it is "windage" then by using the adjustment in the base (the two opposing screws holing the rear ring on) you should be able to adjust it so the scope will zero.

If you ran out of elevation (are you sure you were turning the elevation in the right direction?) then at 25 yards 6" is 24 moa which is about all the adjustment many scopes have on one side or the other or up or down from a centered reticle. If you were turning the elevation "down" and bottomed out then you should have been about 6" low at 25 yards. If you can turn the elevation "up" then do so. The up and down refer to the movement of impactof the bullets on target.

I suggest you have someone look at it who might know what they are doing. Or at least have a gunsmith bore sight it. If it will bore sight with the reticle centered in the scope you will have enough elevation/windage to zero.

However, as mentioned some 7400s do have bad barrel receiver alignment. Bore sighting will also tell you that. If the scope really is "bottomed out" then shimming the front or rear of the base is the best answer.

Larry Gibson

++1 for the Burris Signature rings and Pos-Align offset inserts!

Andy

++2 for the Burris Signature! All I use anymore. Impossible to make ring marks with these. God Bless, Louis

[quote]I suggest you have someone look at it who might know what they are doing.



I swear I was awake that day of sniper school

the doughnut-eater is always appropriate.

The Burris Signatures with the Eccentric Inserts will correct the issue completely as many have posted. Once you begin using the Burris Signatures, you will realize they are a complete generation ahead of all other Ring Manufactures - regardless of their relatively inexpensive cost.

And for people wanting to try their skill at l-o-n-g distances, the Burris Signatures with the appropriate Eccentric Inserts sure beat the obummer out of a $$$HIGH$$$ Tapered Base. Simply an excellent Design.

Best of luck to you.