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20 Mil Rail

 
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  #1  
Old 09-23-2013, 12:32 AM
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20 Mil Rail

I hear a lot about a thing called a 20 Mil Rail what is it?
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  #2  
Old 09-23-2013, 05:14 AM
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Re: 20 Mil Rail

Quote:
Originally Posted by Greg Duerr View Post
I hear a lot about a thing called a 20 Mil Rail what is it?
It is a rail that is lower in than front than in the back, so when you mount your scope you have -20 MOA built in. It helps to ensure your scope does not run out of elevation adjustment. It is usually only required if you shoot long distances.
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  #3  
Old 09-23-2013, 02:28 PM
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Re: 20 Mil Rail

They look like this ( sort of)...

and as stated they help out with the elevation of the scope
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  #4  
Old 09-23-2013, 07:16 PM
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Re: 20 Mil Rail

So its for really long range shooting over 1000yds? would you need it even if your have a 30mm tub?

So if you have a 1 inch tub scope
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  #5  
Old 09-23-2013, 07:18 PM
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Re: 20 Mil Rail

Sorry I did not finish my sentence....................So if you have a 1inch tub and don't plan on shooting over 1000yards you probably don't need it.?
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  #6  
Old 09-23-2013, 08:29 PM
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Re: 20 Mil Rail

depending on caliber, internal adjustments would determine if you need it and it is 20 moa rail not mil if it was 20 mils it would be like having a 60+ moa rail.

so to answer your question we would need more info
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  #7  
Old 09-24-2013, 05:34 PM
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Re: 20 Mil Rail

A 20 MOA rail serves 2 purpose's. 1 being that you can dial out to longer ranges, and the other being that you spend more time in your scopes optical center (or as close as possible) All optics preform the best in the optical center.

Keep in mind tube size does not necessarily mean extra internal travel. A lot of extremely high zoom scopes have 30mm tubes, but only 40 MOA of travel.
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