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Posted: 11/10/2018 2:24:33 PM EDT
Building a medium range rifle for varmint hunting. (200-500) yards
For some reason unknown to me, I accidentally ordered the 20 moa riser version of a one piece mount for my Leopold VX5 2x10 scope. Do I need to return it? This is a hunting rifle so I may have to use it on targets of opportunity under 75 yards. I have never been in the long range game, never used a riser, so I have no idea if this is appropriate for hunting unknown distances and what that does to holdovers, ect. |
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Posted: 11/10/2018 2:32:23 PM EDT
[Last Edit: FALARAK]
[#1]
I'd absolutely want this.
It just allows for additional elevation for longer shots. You might not need it, but it should not hurt at all. It simply means your scope will zero at a different mechanical setting than it would with a zero MOA mount. If you never plan to use your turrets, and will only use hold-overs with the reticle for shots, it wont make any difference. That scope has a very useful turret, but only 38 MOA of total rang, so putting your zero lower in that range with a 20 MOA mount is a good thing, it just lets you take longer shots.... without the risk of running out of elevation in the turret. |
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Posted: 11/10/2018 3:21:31 PM EDT
[#2]
20 MOA is not going to hurt you at short range and will help you at long range; chooot it!
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Posted: 11/10/2018 3:28:16 PM EDT
[#3]
Ok, thanks. Never having used one, I wasn't sure.
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Posted: 11/10/2018 3:30:18 PM EDT
[#4]
Quote HistoryOriginally Posted By FALARAK:
I'd absolutely want this. It just allows for additional elevation for longer shots. You might not need it, but it should not hurt at all. It simply means your scope will zero at a different mechanical setting than it would with a zero MOA mount. If you never plan to use your turrets, and will only use hold-overs with the reticle for shots, it wont make any difference. That scope has a very useful turret, but only 38 MOA of total rang, so putting your zero lower in that range with a 20 MOA mount is a good thing, it just lets you take longer shots.... without the risk of running out of elevation in the turret. If I do use my turrets, is there a way to compensate for it? |
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Posted: 11/10/2018 3:32:24 PM EDT
[#5]
Quote HistoryOriginally Posted By cpl_fisher:
@Falarak If I do use my turrets, is there a way to compensate for it? Quote HistoryOriginally Posted By cpl_fisher:
Originally Posted By FALARAK:
I'd absolutely want this. It just allows for additional elevation for longer shots. You might not need it, but it should not hurt at all. It simply means your scope will zero at a different mechanical setting than it would with a zero MOA mount. If you never plan to use your turrets, and will only use hold-overs with the reticle for shots, it wont make any difference. That scope has a very useful turret, but only 38 MOA of total rang, so putting your zero lower in that range with a 20 MOA mount is a good thing, it just lets you take longer shots.... without the risk of running out of elevation in the turret. If I do use my turrets, is there a way to compensate for it? a canted mount simply changes the mechanical zero position. Nothing else changes. You use the scope as you always would. |
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Posted: 11/10/2018 3:39:58 PM EDT
[#6]
I added one and had to add foam to my stock to use it. That is on an AR magpul stock though, probably not much of an issue on a bolt gun with adjustable stock
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Posted: 11/10/2018 3:41:18 PM EDT
[#7]
Quote HistoryOriginally Posted By KILLERB6:
20 MOA is not going to hurt you at short range and will help you at long range; chooot it! |
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Posted: 11/10/2018 3:42:49 PM EDT
[#8]
Quote HistoryOriginally Posted By ziarifleman:
I don't understand why anyone would buy a scope and then mount it so that half of the internal elevation they paid for goes away. |
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Posted: 11/10/2018 3:45:01 PM EDT
[#9]
Quote HistoryOriginally Posted By jondelong:
I added one and had to add foam to my stock to use it. That is on an AR magpul stock though, probably not much of an issue on a bolt gun with adjustable stock 20 MOA at 5" is only a few thousandths. My Badger Ordnance one piece mounts have my scopes nearly slammed on the handguards of my rifles. |
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Posted: 11/10/2018 4:07:47 PM EDT
[#10]
Quote HistoryOriginally Posted By jondelong:
I added one and had to add foam to my stock to use it. That is on an AR magpul stock though, probably not much of an issue on a bolt gun with adjustable stock 20 MOA = .33 degrees = 0.035" over a 6 inch distance. If a typical scope eye relief is 3.5 inches, and we assume the center of the mount base to the rear objective of the scope is 6", this means the eye position is 0.055" higher with a 20 MOA mount, versus a similar 0 MOA mount. 55 thousandths is less than 1/16" of an inch. I'm not sure if I could detect that difference. |
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Posted: 11/10/2018 6:48:11 PM EDT
[#11]
Mine is a 20MOA weaver that you screw on the rail. Interesting conundrum today; even with my PST gen2 5-25 bottomed out, could not zero at 75Y (as far as I can go in my yard). Still like 10-12" high. Removed it (and then had to remove the foam as it put my eye too high up). Rezeored, now I can only get 8 MIL vertical adjustment, this is on a 6.5G, 18" barrel. So 20MOA base, cannot zero at 100 and likely even 200 bottomed out. Without base, only have 8MIL vertical (1k yards is 13 mil), not enough to dial or hold for 1k.
i am confused! Arfcom you are my only hope |
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Posted: 11/10/2018 6:55:21 PM EDT
[#12]
Quote HistoryOriginally Posted By jondelong:
Mine is a 20MOA weaver that you screw on the rail. Interesting conundrum today; even with my PST gen2 5-25 bottomed out, could not zero at 75Y (as far as I can go in my yard). Still like 10-12" high. Removed it (and then had to remove the foam as it put my eye too high up). Rezeored, now I can only get 8 MIL vertical adjustment, this is on a 6.5G, 18" barrel. So 20MOA base, cannot zero at 100 and likely even 200 bottomed out. Without base, only have 8MIL vertical (1k yards is 13 mil), not enough to dial or hold for 1k. i am confused! Arfcom you are my only hope |
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Posted: 11/10/2018 7:25:15 PM EDT
[#13]
Quote HistoryOriginally Posted By ziarifleman:
Don't be insulted, but did you undo the zero stop on the scope? 
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Posted: 11/10/2018 11:47:21 PM EDT
[Last Edit: jd2395]
[#14]
Yes, I undid it, bottomed it out, then zeroed at 75 without riser. Set zero stop and the most I can dial is 8 mil, not even a complete rotation (10 mils total)
i think i thought of all of all the dumb stuff that I may be doing, maybe. But yes, for sure I undid the zero stop and bottomed out per the instructions from memory, I think it has 20 mil total travel, which means I am using 12 to get a 100y zero which seems off to me. eta: no suggestions will be insulting. Would love to solve the problem even if it means admitting I am an idiot |
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Posted: 11/10/2018 11:52:01 PM EDT
[#15]
You think you could post a pic of your setup?
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Posted: 11/10/2018 11:59:38 PM EDT
[#16]
Sure, what is most critical? Scope mount, rail? It is a aero SPR 30mm mount with Vortex PST gen2 5-25x.
Thanks! |
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Posted: 11/11/2018 1:29:35 AM EDT
[#17]
I just wanted to look at how everything's mounted on the gun.
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Posted: 11/11/2018 4:08:44 AM EDT
[#18]
Quote HistoryOriginally Posted By ziarifleman:
I just wanted to look at how everything's mounted on the gun. |
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Posted: 11/11/2018 4:33:09 AM EDT
[#19]
Quote HistoryOriginally Posted By ALASKANFIRE:
Wondering if it is backwards? Quote HistoryOriginally Posted By ALASKANFIRE:
Originally Posted By ziarifleman:
I just wanted to look at how everything's mounted on the gun. 
Maybe |
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Posted: 11/11/2018 4:48:17 AM EDT
[#20]
Quote HistoryOriginally Posted By ziarifleman:
Maybe Quote HistoryOriginally Posted By ziarifleman:
Originally Posted By ALASKANFIRE:
Originally Posted By ziarifleman:
I just wanted to look at how everything's mounted on the gun.
Maybe |
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Posted: 11/11/2018 3:04:54 PM EDT
[#21]
Will do. I have removed the base but can mount it or mock it up. It really goes on only one way as there is a "overhang" section designed to span upper receiver and handguard/rail.
th original scope I had on the same rifle was a weaver tactical 6-30X FFP in the same mount, but 34mm. I ran it out to 1k and was able to dial 13mil just fine, it broke, replaced with PST gen2. it is consistent; I pulled the base off and re zeroed per instructions for the zero stop, and sure enough, I can only go 8 mil up. On paper the base was going to give me enough to dial 1k and beyond (although the round I think is transonic there or close to it per applied ballistics). I was hoping to keep 100Y zero in this scenario as I will use for hunting (likely well inside 200Y) thanks! |
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