Windage troubles at long range

Well aligning the scope to plumb and using one of the anti cant levels along with a level on top of the scope should solve that equation easily.

Well I just figured that if you guys were telling him to check the cant and the cant, might as well check the cant.:D
 
Well aligning the scope to plumb and using one of the anti cant levels along with a level on top of the scope should solve that equation easily.
No it wont, a scope level and a anti cant , will not resolve a scope that is built out of axis.Or so to speak out of square.You can have a scope with a plumb crosshair, and you can have one that is level. But that is not one in the same if they are not true to each other. This has been discussed here before. If the relationship of cross hairs is not square to each other then you can not have one without the other. And the cross hairs are not always square, SO you could have a plumb cross hair and the horizontal is set to level with a bubble or anti cant devise, but the relationship of cross hairs is off a few degrees, this is not uncommon, and not listed in scope specs.
 
Adding to theory of bad scope, you might test your scope at 100. Start at bottom of large target and dial in for the ranges that are off. Basically doing a box test, but you could skip left and right. If impact walks right, and not in proportional fashion like canting gives, that is the problem. Some scopes wander when moved to extreme adjustment. 2nd option is to try another scope. If it has same problem, it wasn't the scope.
 
No it wont, a scope level and a anti cant , will not resolve a scope that is built out of axis.Or so to speak out of square.You can have a scope with a plumb crosshair, and you can have one that is level. But that is not one in the same if they are not true to each other. This has been discussed here before. If the relationship of cross hairs is not square to each other then you can not have one without the other. And the cross hairs are not always square, SO you could have a plumb cross hair and the horizontal is set to level with a bubble or anti cant devise, but the relationship of cross hairs is off a few degrees, this is not uncommon, and not listed in scope specs.
That is not what I was addressing. What I was addressing was the possibility that the verticle cross hair might be out of plumb with the scope.

If the rifle is leveled with one level, and the verticle crosshair is aligned with a plumb line at the same time if you place yet another bubble level on top of the scope and it is off, then we have diagnosed the verticle crosshair problem.

I wasn't speaking at all to a possibility that the horizontal and verticle crosshairs could be out of square. That's a totally separate issue.

That can be easily diagnosed as well by following the same proceedure as outlined above with the addition of a level horizontal line perpendicular to the plumb line.

If the rifle is level and top of scope is level and the horizontal crosshair does not align with the leveling line while the verticle line is aligned with the plum line, that problem is diagnosed as well.

Rifle and scope both level then both cross hairs should align with the plumb and horizontal target lines.
 
I feel it is more important on a scope that is used by dialing in elevation for a long shot, that the reticle tracks true to plumb line when the level on the rifle is level. This needs to be checked by setting up a plum line, firing at an aim point at the bottom of the line, then cranking up elevation to 20 or more moa and re-shooting at the first point of aim. The last bullet needs to be on that line. If it is not the scope is tracking off and needs to be rotated till it is. Remember to always check the rifle level before braking the shot.

Jeff
 
Warning! This thread is more than 13 years ago old.
It's likely that no further discussion is required, in which case we recommend starting a new thread. If however you feel your response is required you can still do so.
Top