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Thread: Bushnell 3200 10x40 re-parrallax??

  1. #1
    russian sniper is offline 1982 Sausage roll and cider gargling regional finalist
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    Bushnell 3200 10x40 re-parrallax??

    Hi got a Bushnell 10x40 elite 3200 that i'd like to have reparrallaxed to 25 yds for HFT - can anyone help me out??

    Cheers
    Daz

  2. #2
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    I just unscrewed the front ring on mine and fitted a butler creek to stop it moving. Others sometimes fit an 'O' ring in the gap.

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    yup. I do the o-ring; tightened up against the o-ring really tight, stuck a bit of tape around it to stop any chance of movement, and then put the butler creek on. Good scopes for the money, I've a few of them.

  4. #4
    russian sniper is offline 1982 Sausage roll and cider gargling regional finalist
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    I've unscrewed the front ring by around 2mm - now the scope focusses at around 7ft???

    Not really sure what i'm doing to be honest - have i done it wrong???

    Daz

  5. #5
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    Quote Originally Posted by russian sniper View Post
    I've unscrewed the front ring by around 2mm - now the scope focusses at around 7ft???

    Not really sure what i'm doing to be honest - have i done it wrong???

    Daz

    You've just done it too far

    My "gap" was less than a mm. I unscrewed to about 1mm (PX about 20 yards), put in the tight / narrow o-ring, tightened back up to reduce gap down to 0.7mm (estimated), PX ~ 30 yards, job done.

  6. #6
    russian sniper is offline 1982 Sausage roll and cider gargling regional finalist
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    Yep tried it again and i don't know whats happening with it but it now focusses at 10ft with a tiny gap

    Bugger - looks like i've broke it

    Daz

  7. #7
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    ...more likely the lens carrier is moving independently of the outer ring...try loosening it, you may be pleasantly surprised... I've done 5 of these with no issue.

  8. #8
    russian sniper is offline 1982 Sausage roll and cider gargling regional finalist
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    Nope the lens carrier thing isn't moving until i move the outer ring???

    Daz

  9. #9
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    then I'm confused Try putting it back to where you started and see where it focuses ?

  10. #10
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    Hi Daz

    Not wrong exactly; you've just wound the front ring out too far. Wind it back in.

    I re-parallax like this.

    Set out a target at your chosen zero. A simple crosshair "+" works well.

    Adjust the reticle so that it's crisp and clear.

    This next bit is usually easier with the scope removed from the rifle, and using a beanbag.

    Wind the front ring out A BIT AT A TIME until the target is in focus. Now move your head about a bit [but
    without moving the scope, of course] and adjust the front ring a bit at a time until the reticle stays
    stationary over the +. You have now removed parallax error at that range.

    Butler Creeks or whatever to lock, and job done!

    HTH h j

  11. #11
    russian sniper is offline 1982 Sausage roll and cider gargling regional finalist
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    Have wound it in fully until the outer ring is tight and it now focusses at around 15ft

    Wish i hadn't touched it now

    Might have to use it as a .308 target

    Daz

  12. #12
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    Did you buy it new Daz ? What range was it PX'd to originally (should be 100 yards). I'd wind it right out and then back again, see if anything changes.

  13. #13
    russian sniper is offline 1982 Sausage roll and cider gargling regional finalist
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    Wind it out til it comes out??

    Won't that let the nitrogen out??

    Daz

  14. #14
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    Hi Daz

    Look again at Jon Budd's 08:58 post. I think that that's the only explanation.

    Try this. Unscrew the outer ring by say one turn.

    Then, VERY carefully, using something that won't do any damage [ wooden or plastic toothpick, cut-down
    credit card, or even your fingernail ] engage in the lens carrier slot[s] and try to move the lens carrier
    independently of the outer ring.

    If it does move independently, then that's good! You won't need Butler Creeks after re-parallaxing!

    HTH h j [I REALLY wouldn't wind it right out !!]
    Last edited by h j o'rydon; 01-12-2013 at 09:48 PM.

  15. #15
    russian sniper is offline 1982 Sausage roll and cider gargling regional finalist
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    I can't get the inner thing to move at all - even pushing on it.

    Looks like the "quick job" has knackered my scope

    Daz

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