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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Ocular focus & shifting POI... any optics experts here?
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<blockquote data-quote="Timber338" data-source="post: 1240150" data-attributes="member: 33822"><p>I have the new Vortex Razor AMG mounted on a full custom 338 RUM... the rifle and load are dialed and I've put maybe 50 or so rounds down range with the new AMG scope mounted. Last week I shot a sub 3/8 MOA group at 1000 yards so the setup is performing very well including a very good zero that has not changed. </p><p></p><p>So yesterday I took some time to finally tune in the ocular focus as I noticed that the reticle was not as crisp as I was hoping for. I probably rotated the ocular in two full turns and it really helped. The reticle is now perfectly crisp at any distance now as long as the parallax is adjusted properly for distance. </p><p></p><p>But... I just shot for a final practice session for my elk hunt next week, cleaned the rifle and shot a final fouling round, and my POI on all of today's shots shifted down 0.6 inches at 100 yards... from an optics perspective, will adjusting the rear ocular for focus cause a POI shift? It only shifted vertically, horizontal was still perfect.</p></blockquote><p></p>
[QUOTE="Timber338, post: 1240150, member: 33822"] I have the new Vortex Razor AMG mounted on a full custom 338 RUM... the rifle and load are dialed and I've put maybe 50 or so rounds down range with the new AMG scope mounted. Last week I shot a sub 3/8 MOA group at 1000 yards so the setup is performing very well including a very good zero that has not changed. So yesterday I took some time to finally tune in the ocular focus as I noticed that the reticle was not as crisp as I was hoping for. I probably rotated the ocular in two full turns and it really helped. The reticle is now perfectly crisp at any distance now as long as the parallax is adjusted properly for distance. But... I just shot for a final practice session for my elk hunt next week, cleaned the rifle and shot a final fouling round, and my POI on all of today's shots shifted down 0.6 inches at 100 yards... from an optics perspective, will adjusting the rear ocular for focus cause a POI shift? It only shifted vertically, horizontal was still perfect. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Ocular focus & shifting POI... any optics experts here?
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