20 moa or 40 moa rail?

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by Petersen, Feb 26, 2008.

  1. Petersen

    Petersen Well-Known Member

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    Alright, I am trying to figure out which rail will best suit a new rifle that is coming.

    338/300 rum - planning on shooting 300 SMK at 2800.

    The scope is a Swarovski 6-24 PH. 1/6 MOA clicks. This scope has 43 MOA elevation which is 239 clicks according to a person I spoke to at Swaro.

    I entered the load info in a ballistics calculator and assuming a 300 yard zero, I will need 126 clicks to get it out to 1000 yds. Seems like 20 MOA should be plenty but I am assuming there is a way to figure exactly what you will be working with and what is needed. Just having a hard time thinking my way through it. Any help is appreciated. Thanks.
     
  2. ewallace

    ewallace Well-Known Member

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    If the scope only has 43 moa of adjustment I would go with a 20 moa rail. The 20 moa rail would put you close to bottoming the scope out and a 40 moa rail you would not be able to have a 100 yard 0
     

  3. Down Under Hunter

    Down Under Hunter Well-Known Member

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    Shawn Carlock put a 40 moa rail on my edge. It has a Nightforce 5-22 on top. He said it would allow me to dial 2000 yards for some fun. Everything he has said the gun could do, it does ! If you are not going past 1000 20 will be fine though . I was hammering a 1530 yard gong a few days back, and I know the gun has more range within it. It really depends if you want to stretch the guns potential ?
     
  4. ewallace

    ewallace Well-Known Member

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    A nightforce 5.5x22 has about 100 moa of elevation adjustment so you can get away with a 40 moa rail and the nightforce is a good choise for long range hunting and shooting.
     
  5. Petersen

    Petersen Well-Known Member

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    With Nightforce having about 100 MOA, do you think when the lady at Swaro told me 43 MOA she meant it was in one direction? This scope has a 30mm tube as well. I wouldn't think there would be that much of a difference between the scopes, but then again, maybe that is why everyone likes them so much.
     
  6. ewallace

    ewallace Well-Known Member

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  7. MagMan

    MagMan Well-Known Member

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    Petersen, that is total adjustment. Windage is even worse (like 25 moa) but its not likely you'd ever use 12 1/2 moa for hunting purposes (at least I hope not).
     
  8. Petersen

    Petersen Well-Known Member

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    thanks for the input - sounds like i got the info i need.