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Long Range Hunting & Shooting
Gun build - Scope help PLEASE
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<blockquote data-quote="MontanaRifleman" data-source="post: 494165" data-attributes="member: 11717"><p>If a 500 yard zero works for you, that's great, but from what you're saying it seems to complicate things greatly. You essentially have to use a range finder at all ranges except less than 100 yds whereas anything inside of 300 yds, I just aim and shoot. Altitude is not the only thing that affects ballistics. Barometric pressure and temp also affect trajectory. A swing of 2" of mercury and 60* in temp cam affect the 500 yd POI by over 2" without an altitude change. In the country I hunt I can easily see 50 degree temp swings from morning to afternoon and 5000' of elevation change not to mention barometric pressure changes. In order to make an accurate LR shot with a 500 yd zero, you have to do 3 calculations. You have to calculate your zero correction, then apply that correction, then calculate for actual range and conditions. That seems very complicated to me. I only calculate for actual range conditions and shoot. Another thing about a 500 yd zero, you are not saving any elevation adjustment in your scope because you are using come up adjustment for your 500 yrd zero. If your scope has 25 MOA of up adjustment and you use 10 of it for a 500 yrd zero, you still only have 15 MOA left. Zeroing at longer ranges does not help you get more elevation adjustment from your scope. Maybe I'm missing something, but I see no advantage to it and a lot of complications from it.</p><p></p><p></p><p></p><p>And the combination I suggested to the OP with 20 MOA cant was less expensive than the combination you suggested. So I dont see where the savings of a noncanted mount are? If we want to debate quality that's another thing.</p><p></p><p>So unless I'm missing something, I don't see why he shouldn't get a 20 MOA base? It gives him a whole lot more flexibility.</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 494165, member: 11717"] If a 500 yard zero works for you, that's great, but from what you're saying it seems to complicate things greatly. You essentially have to use a range finder at all ranges except less than 100 yds whereas anything inside of 300 yds, I just aim and shoot. Altitude is not the only thing that affects ballistics. Barometric pressure and temp also affect trajectory. A swing of 2" of mercury and 60* in temp cam affect the 500 yd POI by over 2" without an altitude change. In the country I hunt I can easily see 50 degree temp swings from morning to afternoon and 5000' of elevation change not to mention barometric pressure changes. In order to make an accurate LR shot with a 500 yd zero, you have to do 3 calculations. You have to calculate your zero correction, then apply that correction, then calculate for actual range and conditions. That seems very complicated to me. I only calculate for actual range conditions and shoot. Another thing about a 500 yd zero, you are not saving any elevation adjustment in your scope because you are using come up adjustment for your 500 yrd zero. If your scope has 25 MOA of up adjustment and you use 10 of it for a 500 yrd zero, you still only have 15 MOA left. Zeroing at longer ranges does not help you get more elevation adjustment from your scope. Maybe I'm missing something, but I see no advantage to it and a lot of complications from it. And the combination I suggested to the OP with 20 MOA cant was less expensive than the combination you suggested. So I dont see where the savings of a noncanted mount are? If we want to debate quality that's another thing. So unless I'm missing something, I don't see why he shouldn't get a 20 MOA base? It gives him a whole lot more flexibility. [/QUOTE]
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Gun build - Scope help PLEASE
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