Help me choose a base

Discussion in 'Scopes, Optics, LRFs, Spotters, BoreScopes' started by Pigdog, Mar 21, 2019.

  1. Pigdog

    Pigdog

    Joined:
    Jan 28, 2017
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    193
    Have a sightron siii 8-32 has 79moa of adjustment that I have checked myself. Currently with a 20moa farrel base I have 27.1moa of down adjustment left. My action is obviously not perfect so I'm using up 7.6moa to zero.

    This gives me the option to go with a 40 or 45 Moa base, a 40moa base will leave me with 7.1moa down adjustment and a 45 Moa base will leave me with 2.1 Moa down.

    I will be shooting to all distances up to 1500m. I'm tempted to go with the 45moa base so I have a huge adjustment up if I need it. I have read it can cause problems to zero so Close to bottom of erector. Does anyone have any personal experience with sightron siii 8-32 do they track well at bottom of elevation?

    The mechanically centre would be out around 1000 yards with a 45moa base which would be good. Anyone got any thoughts on this would you go 40 or 45 Moa?
     
  2. SPJ

    SPJ Gold $$ Contributor

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    My Sightron tracks real fine, I just wonder about the restriction on your windage at shorter distance.
     
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  3. Pigdog

    Pigdog

    Joined:
    Jan 28, 2017
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    193
    Thanks mate as long as I have enough Windage to zero at 100 I should be ok.

    Anyone else got any thoughts is 2.1moa from bottom going to cause any other issues?
     
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  4. Zero333

    Zero333 Silver $$ Contributor

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    2,176
    As you stated, a 40moa base will leave you 72'ish moa of up elevation.

    Get the 40moa base and go shoot.
     
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