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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Parallax Question??
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<blockquote data-quote="SBruce" data-source="post: 724882" data-attributes="member: 21068"><p>Parallax should be gone when moving from side to side too if it's done correctly. </p><p>Hard part about side/side is it's easier to move the gun accidentally when moving our head side-side. Especially on a portable bench that moves when our body position moves..........Dont know if that applies to your situation or not, but parallax could certainly be the issue or part of it.</p><p> </p><p>Speaking of trigger position on finger; Are you shooting with very light hold on rifle? If so, and the trigger is touching the middle of the finger (especially with a heavy trigger pull) it's possible that you're inadvertantly torquing the rifle some as the trigger breaks, which could in effect move your shots slightly to the right. Just an idea, but light hold on the gun makes it more critical to use the same trigger technique on each and every shot. Some bench shooters dont even grip the grip, but they "pinch" the trigger toward the rear of the trigger gaurd with the pad of the finger and the thumb.</p><p> </p><p>Another possibility that I've seen quite often is the scope not mounted perfectly top dead center above the bore. If the scope is mounted ever so slightly to the right of top dead center, your bullets will (in effect) have to go right to intersect the line of sight (IE your 100 yd sight in). The further the distance the further to the right the bullet will continue to go. Same effect can be seen if the scope is pointed toward a different azimuth than the barrel is.......we're talking very very small amounts here of course.</p><p> </p><p>Just some ideas, hope something mentioned will help.</p><p> </p><p>FWIW, when I've seen a rifle consistantly throw shots to the right or left as distance increases, I've countered this with a 300 or 400 windage sight in rather than the 100 yd typical sight in. In your case, sure you might end up shooting 1/2 or 3/4 inch left at 100, but that is a small distance, and unless we're attempting eyeball shots at 100 yds, it simply doesn't matter. I'd rather be off by 3/4" at 100 than 4" at 400.</p></blockquote><p></p>
[QUOTE="SBruce, post: 724882, member: 21068"] Parallax should be gone when moving from side to side too if it's done correctly. Hard part about side/side is it's easier to move the gun accidentally when moving our head side-side. Especially on a portable bench that moves when our body position moves..........Dont know if that applies to your situation or not, but parallax could certainly be the issue or part of it. Speaking of trigger position on finger; Are you shooting with very light hold on rifle? If so, and the trigger is touching the middle of the finger (especially with a heavy trigger pull) it's possible that you're inadvertantly torquing the rifle some as the trigger breaks, which could in effect move your shots slightly to the right. Just an idea, but light hold on the gun makes it more critical to use the same trigger technique on each and every shot. Some bench shooters dont even grip the grip, but they "pinch" the trigger toward the rear of the trigger gaurd with the pad of the finger and the thumb. Another possibility that I've seen quite often is the scope not mounted perfectly top dead center above the bore. If the scope is mounted ever so slightly to the right of top dead center, your bullets will (in effect) have to go right to intersect the line of sight (IE your 100 yd sight in). The further the distance the further to the right the bullet will continue to go. Same effect can be seen if the scope is pointed toward a different azimuth than the barrel is.......we're talking very very small amounts here of course. Just some ideas, hope something mentioned will help. FWIW, when I've seen a rifle consistantly throw shots to the right or left as distance increases, I've countered this with a 300 or 400 windage sight in rather than the 100 yd typical sight in. In your case, sure you might end up shooting 1/2 or 3/4 inch left at 100, but that is a small distance, and unless we're attempting eyeball shots at 100 yds, it simply doesn't matter. I'd rather be off by 3/4" at 100 than 4" at 400. [/QUOTE]
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Parallax Question??
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