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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Ran out of scope elevation travel what do you recommend?
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<blockquote data-quote="FTRshooter" data-source="post: 1843616" data-attributes="member: 112707"><p>JBM shows that with you load, you need 26.4mil to go from a 100 yard zero to about 1 mile. If your scope only has 19mil of travel, what you are trying to do is impossible, without using the offsets in the scope, regardless of the canted rails or Signature ring offsets.</p><p></p><p></p><p></p><p>A 30 MOA rail is equivalent to 8.5mil; a 20 MOA rail is 5.7mil. </p><p></p><p>So when you start, IF EVERYTHING IS PERFECT, at 100 yard zero, you will have 9MIL of elevation to the top and 10mil of dead space below. If you already have a 20moa rail and you only have 6.3 mil left, you have an issue. You should have up to 14.7 mil up and 6.3 down. Perhaps you mounted the rail wrong.</p><p></p><p>Anyway, even in a perfect world, the 20MOA rail, properly setup would take you to about 1400 yards.</p><p></p><p>A 30 MOA rail will take yo pretty close to 1700 yards, but there will be no 100 yard zero. The furthest you can go from a 100 yard zero will be 1600 yards, and that's if everything was perfect. </p><p></p><p>You could gain a little more distance by using taller rings, so I'm not sure why you're so intent of getting shorter rings.</p><p></p><p>PS I reserve the right to recheck my math. I hate mixing MILs, MOAs and canted rails in the same sentence or equation.</p></blockquote><p></p>
[QUOTE="FTRshooter, post: 1843616, member: 112707"] JBM shows that with you load, you need 26.4mil to go from a 100 yard zero to about 1 mile. If your scope only has 19mil of travel, what you are trying to do is impossible, without using the offsets in the scope, regardless of the canted rails or Signature ring offsets. A 30 MOA rail is equivalent to 8.5mil; a 20 MOA rail is 5.7mil. So when you start, IF EVERYTHING IS PERFECT, at 100 yard zero, you will have 9MIL of elevation to the top and 10mil of dead space below. If you already have a 20moa rail and you only have 6.3 mil left, you have an issue. You should have up to 14.7 mil up and 6.3 down. Perhaps you mounted the rail wrong. Anyway, even in a perfect world, the 20MOA rail, properly setup would take you to about 1400 yards. A 30 MOA rail will take yo pretty close to 1700 yards, but there will be no 100 yard zero. The furthest you can go from a 100 yard zero will be 1600 yards, and that's if everything was perfect. You could gain a little more distance by using taller rings, so I'm not sure why you're so intent of getting shorter rings. PS I reserve the right to recheck my math. I hate mixing MILs, MOAs and canted rails in the same sentence or equation. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Ran out of scope elevation travel what do you recommend?
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