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Stupid scope adj questions

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24 September 2007, 06:54
GeoffM24
Stupid scope adj questions
I have gotten myself all confused so I wanted to see if I have this straight.

The elevation knob and windage knob change POI of the bullet. So if I adjust the elevation knob clockwise for UP I'm acually making the scope look DOWN so when I now look through the scope I have to raise the rifle slighly making the bullet hit slightly UP Right?

This is also why you go opposite when bore sighting because you are adjusting where the scope is looking not the POI of the bullet. And since the scope "looks" opposite the way the elevation and windage knobs read I need to move the knob in the direction of LEFT to make it look RIGHT and so on.

Do I have this right?
24 September 2007, 15:41
JAL
Sounds right to me but when bore sighting on an object or a bore-sight grid I don't even think about it, just give the knob a twerl and see if it goes the right way.

I have seen scopes that are made with the arrows the wrong way ie indicating reticule movement instead of POI.

When shooting targets I now just think "screw" in to lower (ie clockwise) and "turn" clockwise to shoot to the left for windage.
(ie. Imagining seeing the windage knob at the bottom of the circle and turning the bottom part/arc of the knob the way I want the bullet to go.

It's all oposite to the target peeps I was used to so took a while not to get mixed up.
24 September 2007, 17:27
The Specialist
The Reticule is the same as your rear sight on open sights, so move it to the left and the back of the gun moves right and the POI moves left.


"When doing battle, seek a quick victory."
24 September 2007, 18:02
Peter
Sorry I have to disagree with "the specialist". The scope acts like a FRONT sight ie. the adjustment moves in the opposite direction to the impact. Geoff, you are correct. If your bullet impacts low and you want to move it up, you would turn the dial in the direction marked "U" on the scope dial. If you look through the scope while you are doing this, you will see the crosshairs move DOWN. This is also why the "other method" works. ie. some "old timers" will say: "move the crosshairs to where the bullet hit". So, in your case, if the bullet hit low, look through the scope, and while holding the rifle very steady, move the cross hairs from the POA to the POI. You will actually be moving the crosshairs down, but you will be moving the dial in the "U" direction. Hope this makes sense! PS. I don't use a bore sighter so I can't comment on that aspect.
Peter.


Be without fear in the face of your enemies. Be brave and upright, that God may love thee. Speak the truth always, even if it leads to your death. Safeguard the helpless and do no wrong;
27 September 2007, 08:18
Magnunman
Shooting left handed rifles I would turn the scopes 90 degrees to the left. I think this looks better but the adjustments were backwards. A fellow shooter told me the internal adjustments are a simple Screw! You move this screw the way you want the point of impact(not the reticule) to move. Its that simple.
27 September 2007, 09:21
JAL
Thanks Mag, it's a damn shame those directions arn't supplied with all new scopes. thumb