The Big Nikko

Discussion in 'Hunter (HFT) & Field Target (FT)' started by simona, Nov 23, 2012.

  1. simona

    simona Active Member

    Joined:
    Nov 26, 2008
    Messages:
    251
    Location:
    Lowestoft
    I've had a Big BSA on my Walther for a few weeks now and the ranging has proven to be as simple as legend has it.

    I've used my Deben for years and more or less learnt that there was nothing to learn about it; if the temperature is over 8 or 9 degrees it ranges the same (as far as I could ever tell) however warm, bright or shady it is.

    What is the score on early (exposed turret) Nikkos and Big BSAs? I'm not so much interested in their variable optical quality or slightly suspect build just about how they react to changing environmental conditions. I know that by reputation they are fairly steady but what does that translate to, ie if a 55 yard target comes in on my 55 yard mark now in 8 degree November weather where is the wheel likely to stop on that same target in July when it's 26 degrees in the shade? If they do move do they tend to jump or shift gradually?

    Thank you and best regards

    Simon
     
  2. PaulD

    PaulD I like Feinwerkbau's

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    Apr 6, 2009
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    Location:
    Warrington N/W England
    Club:
    Tawd Vale FT&ARC
    I bought my Mk3 around three years ago and as far as im aware its only ever moved the once, it was 40deg in Italy and it shifted by four yards at 55yds. It has never moved at all in the UK and ive shot in temps as low as -4deg!
     
  3. rich

    rich Active Member

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    Nov 8, 2008
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    Location:
    Shebbear, N Devon
    The optical quality of my Mark 1 was frankly dire, but it was equally dire in summer and winter.
     
  4. ellis d

    ellis d Active Member

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    Jan 28, 2012
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    929
    Location:
    Leicester
    Club:
    Castle ftc
    my mk1 would shift gradually, and would range a 55 yarder 57 yards, i have marked both the big nikko wheel and the barry taylor wheel so i just adjust the wheel slightly from summer to winter so im ranging spot on in hot or cold, back the wheell off in summer and adjust it for winter, ive found my mk 3 nikko more sensitive to temp, :) as for lense quality, ive not come across a target i cant range find .
     
  5. maestro

    maestro Member

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    Nov 4, 2009
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    Location:
    Taunton, Somerset
    Club:
    Harriers
    Hi Simon,
    I tested Nikko mk1 and mk3, both move with temperature gradually, on a 50 m target and 10 Celsius difference the mk1 shifts 0.5 m while the mk3 does 2.5 m. (but the winner is the Schift&Blunder FT with 4.2 m)
     
  6. simona

    simona Active Member

    Joined:
    Nov 26, 2008
    Messages:
    251
    Location:
    Lowestoft
    Thanks for the detailed replies.
     

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