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Ideal height of a scope?

Discussion in 'Anything Airgun Related' started by simes222, Jan 6, 2014.

  1. simes222

    simes222 Donator

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    As per title guys, what is the best height to mount your scope?

    Tried with low and medium mounts with different results regarding hold over/under.

    If you mount an MTC Connect should you use the connectamount which puts it really high

    or change to low mounts.

    Thoughts appreciated.
     
  2. terry1001

    terry1001 Major Poster

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    The ideal height is the one which enables you to shoot comfortably, as lonf as it doesn't foul any of the moving parts on the gun. The height will affect holdover points as well and a very high scope does reduce holdover at longer ranges - have a look at it in Chairgun Pro and you'll get an idea of the difference it can make.
     
  3. Stevie Darling

    Stevie Darling Sexual tyrannosaurus

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    I use high mounts, not for any technical reason apart from its comfy:)
     
  4. walker

    walker Busy Member

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    see im the complete opposite I like get my head as low as possible with my cheek buried in the stock. high mounts don't suit me even though ive got a long head:rolleyes:
     
  5. stevemandm

    stevemandm Honorary Member

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    both hi and low mounts have their advantages and disadvantages equally, so i would go with what suits you best (ease of use and comfort wise).
    personally, i prefer the scope to be as close to the barrel as possible
     
  6. Patrick

    Patrick Donator

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    I always thought the idea was to keep the distance between scope and barrel as close as possible.
     
  7. mark.177

    mark.177 Donator

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    bring your rifle to your shoulder with your eyes closed get nice and comfy like your about to take an aimed shot (still eyes closed) feels right? now open your eyes... where your scope? high, low... just right?
    if it needs to be lower but your scope too big sell it and buy one with a smaller objective.
    most rifles iv shot seem to want medium mounts to get the correct scope hight for my eye the exception being the 95 i just bought which wants high mounts...
     
  8. tomsteebs

    tomsteebs Donator

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    Common miss conception, only in big calibres, with loopy air rifle trajectories you have to get à scope height which gives the illusion of a flatter trajectory. Basically you need to get your 2 zero points either side of your average range which results in less hold over/under. Adjusting the scope height then differs the amount of holdover on top of that, I would draw a diagram but I'm on my phone so can't at the mo. Usually go for the highest mounts you can zero with (very loose rule) I personally go for whichever mounts fit my head position over down range performance.
    Tom

    Ps- I think that's correct :)
     
    Last edited: Jan 6, 2014
  9. oliver13

    oliver13 Donator

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    I think it's recommended to get the sight line through a scope an near the barrel as possible, but in practise I think it's more important to get the scope right for your shooting position then work out your aim points from there.

    An interesting point though, what happens when you move between different guns - say an Airsporter or Mercury with a low stock stock designed for open sights, & a Lightning with a high cheekpiece for scope use?
    I've never noticed a problem though, so maybe it's not an issue.
     
  10. terry1001

    terry1001 Major Poster

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    There is no particular reason with an air rifle why you should mount the scope close to the barrel. What is important is to get the scope position so that you can get your head in a comfortable position behind the scope with your eye at the correct distance for eye relief so that you don't get problems with parallax. With some scopes it may be difficult to get it zeroed if the mounts are very high but, in general, a higher mounting position will help reduce the amount of holdover required at longer ranges. As I said earlier you can check this in Chairgun Pro and it's quite surprising how much difference a slightly higher mount will make.
     
  11. r10hunter

    r10hunter Honorary Member

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    In my opinion.
    If you mostly hunt higher mounts give the appearance of a little flatter trajectory at longer hunting ranges.

    If you shoot hft or do a lot of ratting where you are shooting at closer ranges keeping the scope closer to the barrel works better.
    Cheers Andy
     
  12. tomsteebs

    tomsteebs Donator

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    Ditto
     
  13. JonnyA88

    JonnyA88 Well-Known Member

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    I'm a noob, But thought i'd put my 2p in from what I've been told,

    Basically it should be enough to clear the objective lense (facing the target) as this is usually the larger lense, with as minimal clearance as reasonably practical for the user and to ensure all operating parts are free to use and not impacted.

    So to sum up, How you like them really as long your gun can still work...
     
  14. tomsteebs

    tomsteebs Donator

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    Aha 75% correct , there's a bit more to it when fine tuning some aspects of your set up. Have a read through this thread and see if you can understand what we are trying to discuss. If not, just ask any questions.
     
  15. mattyts

    mattyts Donator

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    I go for as close as possible but my shooting is usually done close range and suites me that way but i still have enough adjustment to do FT ranges
     
  16. Speed

    Speed Busy Member

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    on my FT rig i have a 42mm rail and high mounts, gets me comfy in the FT sitting position, my hw95 is on a 1 pc high mount so my scope is 5mm from the barrel,
     
  17. Akita177

    Akita177 The Absolute State of Britian podcast

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    For me one of the main things that depends on the hight of mounts i use is the rifles cheek peice heigh, though my preference for most guns are medium(decent raised cheek peice) to low mounts(i.e HW95/S200).
    But i also dont use 50mm objective scopes or front AO.
    I only use highs if forced to or a Field Target set up.
     
  18. nick2

    nick2 Keyboard Hero

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    Custom made mounts to get as low as possible for me.
    [​IMG]
     
  19. Wild Bill

    Wild Bill Long time poster

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    I use the lowest available 30mm mounts for my MTC Connect. The lowest are Nikko Sterling LOW mounts. (I know this because I measured every make available.) They are 11mm in height and cost a measly £6.95. Bargain. The proper Connect mount is way too high for my liking as I want all my scopes to be as low as possible.

    Andy
     
  20. simes222

    simes222 Donator

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    Just found some Nikko Stirling low's in my mounts box.

    Now fitted on HW100 with a connect to give a height (centre of barrel to centre of scope) of near as damn it 1 1/2".

    With a zero of 25yds and all the correct info put into Chairgun, all I have to worry about is hold over.

    I will try this on my new S400 when the new connect arrives in a day or so.

    Does anyone else have a zero of 25yds for HFT or is 35 the zero of choice??

    Si
     
    Last edited: Jan 6, 2014

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