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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Long range hunting scope.
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<blockquote data-quote="lightwind" data-source="post: 569904" data-attributes="member: 30140"><p>OK, let me see if I have this right. The Vortex Viper PST MOA that I have is a FFP (First Focal Plane) reticle. What that means is that the reticle expands with the sight picture so that one moa on the reticle always covers 1 moa on the target. I am as confused as loner here as to how the .18 moa can expand to 8" at 1000 yards. From my view through my scope and my understanding of a FFP scope it should subtend .18 moa at every magnification. That means that at 1000 yards it would still subtend .18 moa which is about 1.05 inch/100 yds * 10 (100 yds/1000 yds) * .18 = approximately 1.89". Looking through my scope at 100, 200 and 400 I see it expanding in proportion to about 1.05" * .18 per 100. So, with what I can range outside that is what I am seeing. How does approximately 2" expand to 8"? I don't get the 3.5" loner gets (I get the 1.89"), and I certainly don't get 8". Loner seems to be much closer to the mark. Please explain the 8". Do you have a defective Vortex Viper PST?</p></blockquote><p></p>
[QUOTE="lightwind, post: 569904, member: 30140"] OK, let me see if I have this right. The Vortex Viper PST MOA that I have is a FFP (First Focal Plane) reticle. What that means is that the reticle expands with the sight picture so that one moa on the reticle always covers 1 moa on the target. I am as confused as loner here as to how the .18 moa can expand to 8" at 1000 yards. From my view through my scope and my understanding of a FFP scope it should subtend .18 moa at every magnification. That means that at 1000 yards it would still subtend .18 moa which is about 1.05 inch/100 yds * 10 (100 yds/1000 yds) * .18 = approximately 1.89". Looking through my scope at 100, 200 and 400 I see it expanding in proportion to about 1.05" * .18 per 100. So, with what I can range outside that is what I am seeing. How does approximately 2" expand to 8"? I don't get the 3.5" loner gets (I get the 1.89"), and I certainly don't get 8". Loner seems to be much closer to the mark. Please explain the 8". Do you have a defective Vortex Viper PST? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Long range hunting scope.
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