parallax adjustment is the side focus wheel on a scope correct? I use it to focus my picture. From 50 yards to infinite, it is clear picture for me. So I always set to 50 yards on the scope and leave it. I can use it to shoot about 20 yards to 100 plus yards. Only time I need to touch it is I'm shooting too close and it gets blurry then I turn down to 3 to 10 yards. But other than that, I always leave to 50 yards and use it for 20 yards to 100 yards. Am I doing it wrong or something? Do I need to range my target every time and turn the focus to whatever yards my target is at. Or can I leave on 50 yards and shoot up to 100 yards?
parallax adjustment
- Thread starter Airmanator
- Start date
"Doing it wrong"? Not necessarily. And you can hit "a target" that way in many instances. But in doing so, are you possibly decreasing absolute best accuracy due to parallax error at specific distances? YES. There is a reason they focus to infinitely variable distances instead of only at 50 yards. That reason is to minimize (eliminate??) parallax error AT THOSE SPECIFIC DISTANCES.
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If you are hitting your target. you're doing it right enough! If you are shooting at known distances, no problem. But if you estimate a distance of 80 yards, but it's really 100, you miss by about 10 inches. Maybe you have a range finder, or are blessed with perfect depth perception and distance estimating ability.
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If you're staring perfectly through the optical center of the scope, it won't matter at all, at any range. The amount of error is small, but magnified with distance.
An excellent habit to get into is to move your head slightly (a small nod, or shake) while staring at the crosshairs on the target. If the point of aim moves (and not because you've moved the rifle) you have some parallax error.
GsT
An excellent habit to get into is to move your head slightly (a small nod, or shake) while staring at the crosshairs on the target. If the point of aim moves (and not because you've moved the rifle) you have some parallax error.
GsT
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I pay no attention to the markings on the focus/parallax turret. For most scopes those markings are not accurate anyway.
If you have the reticle precisely focused, which can be hard to do accurately for some, then when you focus the objective precisely there will be no parallax.
The most common problem is not having the reticle actually focused properly because of the nature of the human eye. It adjusts quickly for the reticle, even when it is not actually focused.
There are many methods for focusing the reticle and all of them work. Some are easier than others and some may be better than others. YMMV
If you have the reticle precisely focused, which can be hard to do accurately for some, then when you focus the objective precisely there will be no parallax.
The most common problem is not having the reticle actually focused properly because of the nature of the human eye. It adjusts quickly for the reticle, even when it is not actually focused.
There are many methods for focusing the reticle and all of them work. Some are easier than others and some may be better than others. YMMV
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True that the yardage may not be "accurate anyway". But they can be MADE accurate (in the cases where they are not) with a custom tape that helps one then range a target through focus. Might be very useful to some.
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G
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http://www.fekete-moro.hu/bfta-setup-manual/index-en.php
Lot of really good information regarding scope setup at that link.
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