Help Please

[greenron15]

At 100 yards its right on at 300 yards its 3 inches to the left. I shoot left handed and have a cant bubble on my scope. What am I doing wrong. The gun is a remington sendero 308 Leupold mark 4 M1 scope
HELP

 

[15Tango]

Sounds like you're not putting in 1 minute right windage to correct for the wind.

 

[necchi]

FWIW,
When I see horizontal movement and I know the wind is not an issue,
It's me on the trigger.
Not tryin to be rude at all, but for all the best equipment and finely tuned ammo, there is still the human factor of shooting and It's my opinion that the human variable is always the one that needs the most work.
It takes time and pratice to work out all the bugs with this variable.

 

[brxbrad]

Is there a possibility the scope isn't mounted straight? I have a friend that had this problem, and his smitty found the holes for the rail weren't drilled in line with the action. When this happens to me, it's the loose nut behind the trigger that needs to be tightened.

 

[Preacher]

If the wind is not involved, your base is not inline with the center line of the barrel..
If your adding elevation to get to 300 yards and it's doing it, the scope is not level.......

 

[BoydAllen]

If you take your scope off an roll it on non marking V blocks, adjusting it till the cross hair intersection stays in one place, as the scope is rolled, you can then remount it and use careful bore sighting to see where the barrel is pointed and compare that to where the scope is pointed. If there is significant windage discrepancy, your mount is at an angle to your barrel, which means that if you adjust your windage to be on at one distance, you will be off at others. Darrell Holland makes a mount that addresses this issue. There are also rings that have windage adjustments on both rings that could possibly be used to correct the problem.

 

[jo191145]

Shoot at 100yds. Adjust your scope for 300yds and fire another group on the 100yd target.
If it moves 1'' left its your setup.
If its straight vertical its the wind.

 

[alf]

Or......

Take a tall piece of paper, freezer wrap, etc, and draw a perfectly plum, verticle line. Mark an aiming point at the bottom end of the line and shoot a shot at 100 yards. Then dial in 10 minutes of elevation and fire a shot. It should be roughly 10" high centered on the line. You could test at 20 MOA, or do another 10, or 20, whatever suits your fancy. You're just checking to see if it's tracking straight. If not, you loosen the scope and turn it in the rings, and re-test to confirm.

 

[HillbillySniper]

Are you death gripping the rifle when you shoot it? I know if I white knuckle any of my rifles off the bipod it throws them all over the place. Hope you can figure it out.


Hillbilly

 

[Forum Boss]

Applying the general rule of the square, wind drift at 300 yards will be (3x3) or 9 times what it will be at 100 yards. So 3" of drift at 300 yards translates to 1/3 inch at 100 yards. You may not be able to see that given the inherent accuracy of your gun.

 

[whiskey08]

+1 for all replies, between these u should have it covered. Id also double check zero, small error could account for it.

 

[Larryh128]

+1 on Preacher, If the other varibles have been removed, it's a canted scope. Doesn't take much & I see it all the time. On a dead still day, I'll tune it at 100 in a rest, move to 300 & sometimes loosen the rings & adjust until both hit the same plane right to left. A little screwing around but sometimes level vials only get you so close.