Scope question

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#1gohunt

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I have recently put a 5 x25 Vortex viper on my Winchester 52 C Target Rifle. I have been shooting with it for about 2 months now. Recently while shooting Benchrest at 50 yds I had trouble with what appeared to me as the Target drifting away from the crosshair. I am 75 years old. Me or my scope?
 
Both,
Parallax can cause such visual images, at the same time, so does fatigue. The amount of light being transferred in an optic can be more then non-optical viewing. This can and does cause eye fatigue.

At the same time, if the ocular is not set correctly, the reticle sharpness (lack of) causes the eye to focus on the image and the point of aim, if both the image of the sight picture nd point of aim are not visually on the same plane (correctly adjusted ocular) your eye shifts focus back and forth. Causing eye strain.

Parallax is the focus of the light distortion as light passes through your optic.
 
Could be parallax. I assume that the scope zooms from 5 to 25X. It could be that scope does not focus down to 50 yds which would usually mean that the target would be out of focus no matter what you did. Parallax usually occurs when you move your head right or left and the image in the scope moves as well. It should not. Try blinking and move your head slightly and see if that helps. This may sound strange but I had an eye refraction last year that the resulting prescription didnt look right and when I got the glasses, was not right. I went back to eye doc and they hooked me up with a technician that knew what she was doing and had me blink and move my head ever so slightly when we got down to the nitty gritty between lenses. Miraculously the resulting prescription came out much closer to my old one and when I got the glasses made again, I could see out of them.
 
JBoyette said:
Both,
Parallax can cause such visual images, at the same time, so does fatigue. The amount of light being transferred in an optic can be more then non-optical viewing. This can and does cause eye fatigue.

At the same time, if the ocular is not set correctly, the reticle sharpness (lack of) causes the eye to focus on the image and the point of aim, if both the image of the sight picture nd point of aim are not visually on the same plane (correctly adjusted ocular) your eye shifts focus back and forth. Causing eye strain.

Parallax is the focus of the light distortion as light passes through your optic.
Click to expand...
I was shooting at a Target in a Westerly direction in the evening. I had a sunshade on this scope. The parallax knob is easy to adjust and seems to be pretty accurate. 50 yard target and the Target was clearest at the 50 yard setting.
 
jimmyjames8 said:
Could be parallax. I assume that the scope zooms from 5 to 25X. It could be that scope does not focus down to 50 yds which would usually mean that the target would be out of focus no matter what you did. Parallax usually occurs when you move your head right or left and the image in the scope moves as well. It should not. Try blinking and move your head slightly and see if that helps. This may sound strange but I had an eye refraction last year that the resulting prescription didnt look right and when I got the glasses, was not right. I went back to eye doc and they hooked me up with a technician that knew what she was doing and had me blink and move my head ever so slightly when we got down to the nitty gritty between lenses. Miraculously the resulting prescription came out much closer to my old one and when I got the glasses made again, I could see out of them.
Click to expand...
I know my eyes are getting a little worse. I just moved to NC a year ago and was having to switch licence from SC to NC. Had to take eye test. I passed but I know I was having problems. I use my glasses to read. I don't look thru my scope wearing my reading glasses
 
#1gohunt said:
I was shooting at a Target in a Westerly direction in the evening. I had a sunshade on this scope. The parallax knob is easy to adjust and seems to be pretty accurate. 50 yard target and the Target was clearest at the 50 yard setting.
Click to expand...


I don't think that's really what the parallax adjustment is for.

For some reason I can't get two different videos to link. Search YouTube for scope parallax adjustment.


.
 
Last edited:
Well I had the Grandkids over for an extended weekend. Friday evening my 7 year old Granddaughter shot at a Youth shoot at the Iredell Gun Club. She came in 3rd out of 5 contestants. She was the youngest one there.
So after all this excitement I watched the 2 videos you suggested. I now have a greater understanding of Parallax. I did go outside and adjust my scope reticle as suggested. I hope this eliminates the Target drift. I don't have a place to shoot so I have to wait for an invite.
Thanks for the help Gator.
 
No what happened to me was the Target seemed to drift off to the right. I have readjusted the objective but I haven't had a chance to shoot again.
Thanks for the help.
 
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