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What MOA base to use?

 
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  #8  
Old 08-16-2010, 04:28 PM
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Join Date: Dec 2008
Location: Dillon MT
Posts: 188
Re: What MOA base to use?

Quote:
Originally Posted by retiredcpo View Post
I put together a sendeo with Leupold vx3 6.5-20x50 with seekins rings and a 20 moa base.
Its a 7mm remington mag.
With a 200 yard zero I am 12 moa from the bottom of the scope
My scope has 94 moa of travel I need 32 moa to get to 1000 yards
soI have 50 moa left over
hope this helps you decide what to do
I would think you would be fine with a 20 moa base
just my 2 cents
retiredcpo

Those must be some really really high rings. You should have at least 20 moa up left after your 100 yard zero in the scope. Meaning thats moa you will never use. Its not good to run you travel all the way to the end but him having 31 more travel then yours its much better to have a 30 or 40 moa base because when shooting longer range the scope is gonna be much more centered for the left and right travel.

Last edited by BobbyL; 08-16-2010 at 05:07 PM.
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  #9  
Old 08-16-2010, 04:48 PM
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Join Date: Jul 2009
Location: Idaho
Posts: 580
Re: What MOA base to use?

well dont really rember the exact height of the rings but its not very high.
really dont think I could use any shorter rings
I have exactly 12Moa from my 200 yard zero to the bottom of the scope
Not sure why you would use a 100 yard zero. But Im not a expert Im farely new to this stuf.
Retiredcpo
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  #10  
Old 08-16-2010, 07:09 PM
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Join Date: Dec 2009
Location: New Jersey
Posts: 41
Re: What MOA base to use?

I'm quite new to long range and turret twisting, could one of y'all please explain why you would need MOA bases on a scope with 125 or even 94 MOA internal adjustment? On a slow .338 Lapua I'm thinking you only need about 28 MOA at 1000 yards, why wouldn't a flat base work, what I'm I not seeing?


I have a 300 RUM that I put a 20 MOA base under a Sightron scope with 100 MOA internal adjustment, only because it seemed everyone was using 20 MOA bases, but now I'm thinking I could have gone with a flat base. What would be the reason I couldn't?
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  #11  
Old 08-16-2010, 11:35 PM
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Join Date: Feb 2005
Location: Nevada
Posts: 2,781
Re: What MOA base to use?

[QUOTE=Hntbambi;415864]Great! Thanks guys.

Eaglet,
What is the program you posted a picture of?[/QUOTE

Hntbambi,

it's a simple application that I created I for quite a while I posted it in many websites for the take as a small contribution for the Shooting community.
Just read a bit in the help file and it will take you a long ways.

http://pages.sbcglobal.net/jomoncada...ballistics.zip
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  #12  
Old 08-17-2010, 06:27 AM
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Re: What MOA base to use?

Thank you Sir!
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  #13  
Old 08-17-2010, 09:47 AM
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Join Date: Dec 2008
Location: Dillon MT
Posts: 188
Re: What MOA base to use?

Quote:
Originally Posted by retiredcpo View Post
well dont really rember the exact height of the rings but its not very high.
really dont think I could use any shorter rings
I have exactly 12Moa from my 200 yard zero to the bottom of the scope
Not sure why you would use a 100 yard zero. But Im not a expert Im farely new to this stuf.
Retiredcpo
Im saying your case is not normal. You should have a lot left in the bottom of your scope so something is off. Which is not a bad thing if your not running out of travel. So there is nothing for you to worry about. But if you have the extra adjustment why not take advantage of it? I use a 100 yard zero because that what i run when i do a table in my BC programs. Yes its not a problem to use a 200 or even a 300 yard zero but this program bases everything off 100 so thats what i use.




Quote:
Originally Posted by cedarswamp1 View Post
I'm quite new to long range and turret twisting, could one of y'all please explain why you would need MOA bases on a scope with 125 or even 94 MOA internal adjustment? On a slow .338 Lapua I'm thinking you only need about 28 MOA at 1000 yards, why wouldn't a flat base work, what I'm I not seeing?


I have a 300 RUM that I put a 20 MOA base under a Sightron scope with 100 MOA internal adjustment, only because it seemed everyone was using 20 MOA bases, but now I'm thinking I could have gone with a flat base. What would be the reason I couldn't?
Like i said earlier it depends on how far you plain on shooting it. If you are shooting long range get the higher moa base and then you scope is in the middle of its up and down travel when you are shooting at the further distances. If you have it available why not use it. That 300 rum you have is a capable 1500 yard gun. With a 20 you would be able to get on at that distance with a 0 you would be cutting it close.

You could put a 0 on it but it limits your travel. Again if its there why not be ready to use it? The best base for that scope would be either a 30 or a 40. In my 5.5-22X56 NXS i use a 40 moa base with high rings . It has 105 moa of travel and i have less then 7 left in the scope. Its kinda like a zero stop and thats why i use it. I dont have to worry about what turn i was on. I simply turn it to the bottom and back up to zero and i know im there.

Last edited by BobbyL; 08-17-2010 at 09:50 AM.
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