different scope adjustments for differences in vision?

N

Norrick

New member
My buddy uses glasses. I don't. I adjusted one of my scopes to group over a bullseye. He had a go at my rifle, and was consistently hitting off center. He adjusted the scope to his satisfaction and shot some targets up.

After he was done I went back to shooting, and had the same problem he described, so I readjusted my scope back to my satisfaction and plinked away.

Anyone ever hear of this? Or is there a chance that the breeze might have shifted between turns?
 
What was being adjusted on the scope? The focus or the windage and elevation?

Like phil stated above, different people have different point of aim. It's the same way when you are wearing a jacket or not wearing a jacket. That sometimes can change your point of impact.
 
Parallax

If you don't hold your head in the same position and look exactly through the center of the scope each time it can make small differences in point of impact.
 
Parallax shouldn't vary with the differences in vision between two shooters, but focus certainly will. There is no "One size fits all."

Using a scope, I can shoot with or without glasses--but I have to re-adjust the eyepiece from one to the other.

How shooters look through a scope will vary, or there can be a minute difference in a little canting of the rifle which isn't noticeable.
 
Parallax, differences in cheek pressure, differences in the way that the rifle is held, all sorts of things can change the way a rifle shoots. That's just one of the little pleasures of rifle shooting. I cannot zero a rifle for you. I can sight it for me, but when you pick it up, something changes. When something changes, everything changes.
 
Of course there is a difference between people and their eyesight.

My wife (prior to laser surgery) had really screwy eye sight. 20/400 or some such silly number.

I took her hunting shortly after we were married. He had my Model 70, 257 Roberts and attempted to shoot a deer about 150 yards away and Missed.

I teased her telling her that was the first time that rifle ever missed a shot at a critter.

Bad Move, she started crying saying she was told because of her eye sight she could never shoot a rifle, even in the military (she was in the NG) she could bearly qualify. Everyone who worked with her told her that her eye sight makes it impossible to be able to shoot.

This torqued me off bit time. I says BS, I'm a firm believer in, like Gary Anderson says, THERE IS NO HOPELESS SHOOTERS. I do believe there are instructors who don't know how to detect eye problems in shooting.

I took wifey home we set on the back porch and I started working on the scope of my Winchester. In a very short time I had her wacking a 6 inch gong at 200 yards, CONSTANTLY, every shot.

Took her back up the hill on my property and sure enough, She nails a deer, perfect shoot.

Of couse I couldn't hit anything with my Model 70 now, so I dug up one of my last Model 70 actions, ordered a barrel blank and built her a 243 so I could get my 257 Rbts back.

Even the same shooter, shooting the same gun, in different positions. My zeros for 200 yard standing is a full two MOA different then my 200 yard setting rapid zero.

You see it all the time, and I get a kick out of it, someone talking someone else's rifle to the range to sight it in for them cause they don't have time, or can't get on paper.
 
My Father in Law has poor vision in his right eye, he sets his Leupold on 6 Power and leaves it there because thats what it takes for him to see the target clearly.
He had an accident that damaged his eye, but he does not feel comfortable shooting left handed.
Your friend might have to adjust the magnification to see clearly as well.
 
It IS A FACT....

One taught to me when I was young, and just starting shooting, that no two people look through the sights exactly the same way.

Most of us are pretty close, and often that's good enough. BUT when you need precision, the rifle must be sighted for you, by you, and nobody else but you...alooone, poo poo pee doo....:D

Scopes put the difference between shooters in smaller categoy(?) than irons, but its still there. You know how they teach you that peep sights work because the eye "naturally" finds the center of a circle? Well, it does. But the center that you see, and the center that I see may not occupy the exact same point in the spacetime continium.

I shot with one friend for many years, and we often traded rifles for each shot. Didn't seem to matter too much about anything else, but with virtually every thing we shot, his rifles shot 1/2-1" high for me, and mine shot high for him, by nearly the same amount.

My Father's guns shot "on" for him, high for me. My guns shot low for him.

Have always told people who ask, "Sure, I'll sight in your gun, for me. Ought to be close, for you, but I won't promise exact. You're not me."
 
I agree POA and POI from the same rifle and scope from person to person can vary greatly as stated from eye vision to how the rifle is held and mounted,and physical differences in shooters cheek weld and distance from cheek to eye alinement to the scope.
 
I have to use the focus ring to see the crosshairs clearly but usually I hit what others hit,,,,and usually their scopes need adjustments.:rolleyes:
 
I had a crazy 1SG who would only let us "battle sight zero" our weapons. Made us learn to shoot like that. His rational was, if everyone knew where their poi was on a battle sight zero then if you go down and my rifle jams I can pick up yours and still put metal into flesh. Good theory, I suppose, but hard as everything to enforce.

Anyway, everything you do while holding the rifle before you squeeze the trigger effects where the bullets hit. Everyone does things a little bit different. Its not just scopes, but irons too.
 
he was actually adjusting the knobs for windage/elevation

I'm wondering if his shooting technique could also throw it off, the way he pulls the trigger, etc.
 
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