Windage maxed out

1stSgtUSMC2012 · 2023-03-18T19:14:08-0400

I have Tango 4 6-24x50 and have it mounted on a Remington 700 .308. When I laser bore sight it, the windage is maxed out to one side.. Looking for reasons why.

Stick486 · 2023-03-18T19:30:46-0400

rail mounted???
rings damaged or poor quality.. swap ring positions or rotate 180°... check sightings each time..
scope damaged or slipped through QC...
bore laser doesn't fit or it's off center - rotate 90° and site again for all positions...

Thebankerman · 2023-03-18T20:01:19-0400

I had a similar issue. Turned out to be the mount was out of spec.

Lancer L5 AWM · 2023-03-18T20:34:40-0400

The most common cause seems to be laser bore sight emitters that are themselves off center/out of round within the cartridge shaped housing. As recommended above, rotate the laser cartridge one quarter turn at a time, while observing to see if the dot moves on the wall target.

Does your laser cartridge sit in the chamber, or in the muzzle? Many OEM production barrels aren't drilled very straight and there can be deviation from chamber to muzzle.

Have you used that same laser cartridge before without issues? Laser bore sight systems should be precision devices, but instead most are low priced junk.

Mounting that scope on a different rifle and observing the needed adjustments would tell you if it's the scope itself.

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PhilF · 2023-03-18T21:06:03-0400

Using Leupold STD one or 2-piece bases and their rings will allow you to adjust windage to the bore line before using the scopes adjustments.

1stSgtUSMC2012 · 2023-03-18T22:38:15-0400

Stick486 said:
rail mounted???
rings damaged or poor quality.. swap ring positions or rotate 180°... check sightings each time..
scope damaged or slipped through QC...
bore laser doesn't fit or it's off center - rotate 90° and site again for all positions...

Had 2 separate rings, but going to try a rail.

SigInTheHead · 2023-03-18T23:00:44-0400

Move both windage and elevation to center, grab a box of ammo and head to the range!
Bore sight it and then start shooting - way more fun that playing with lasers!

Lancer L5 AWM · 2023-03-18T23:32:48-0400

1st Sgt, part of the fun for us is that these sorts of threads can become a real life illustrated story and learning moment for all, but that requires you answer some of the seemingly routine questions we ask along the way... :cheers:

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1stSgtUSMC2012 · 2023-03-18T23:46:05-0400

PhilF said:
Using Leupold STD one or 2-piece bases and their rings will allow you to adjust windage to the bore line before using the scopes adjustments.

Good thought.. I will give it a try.

1stSgtUSMC2012 · 2023-03-18T23:47:56-0400

SigInTheHead said:
Move both windage and elevation to center, grab a box of ammo and head to the range!
Bore sight it and then start shooting - way more fun that playing with lasers!

Totally agree.. the weather here has not been willing to go and shoot it out.

DansSIGs · 2023-03-19T04:23:56-0400

Center the elevation & windage turrets.

Pull the bolt out of the receiver.

Bore sight the rifle.

Remember,bore sighting is equivalent to adjusting a front sight......backwards from aiming & doping to correct POA/POI.

Bitter Clinger · 2023-03-19T09:45:15-0400

I tried a laser boresighter on a 5.56 and something wasn't right because the dot was way off even at 50yd. Rolled it across a flat counter top and it was like follow the bouncing ball on a TV screen - only thing missing was song lyrics. Went into the trash. Agree with just looking down the barrel to get it in the ballpark.

Here's a thought though... have you checked to see if your rail needs to be bedded? Neither of the tops of both my 700 receivers were perfectly level and had I just nailed the mount down without checking for a gap and then bedding the rear, there would have been a very small amount of flex on the rail. You can check for receiver evenness by putting a mount screw "just snug" in each end individually to see if there's a gap on one of the ends when the other end is finger tight.

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Nickp · 2023-03-19T09:49:14-0400

Plus 1 on using the barrel rather than the laser...much more accurate. Then use 308 ballistic chart to do the initial elevation adjustment. Pull out a box of '08's and have fun...

USMC Ret · 2023-03-19T10:12:59-0400

So many choices. I installed one of these on my Rem 700 a few years ago; no issues. Remington 700, 721, 725, Sauer 100/101, Bergara B14 Long Action Picatinny Rail 0 MOA (egwguns.com)

1stSgtUSMC2012 · 2023-03-19T10:20:02-0400

Bitter Clinger said:
I tried a laser boresighter on a 5.56 and something wasn't right because the dot was way off even at 50yd. Rolled it across a flat counter top and it was like follow the bouncing ball on a TV screen - only thing missing was song lyrics. Went into the trash. Agree with just looking down the barrel to get it in the ballpark.

Here's a thought though... have you checked to see if your rail needs to be bedded? Neither of the tops of both my 700 receivers were perfectly level and had I just nailed the mount down without checking for a gap and then bedding the rear, there would have been a very small amount of flex on the rail. You can check for receiver evenness by putting a mount screw "just snug" in each end individually to see if there's a gap on one of the ends when the other end is finger tight.

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Good insight.. I will give it a try. Thanks!

Windage maxed out

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