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Shimming For Windage?

Discussion in 'Technical' started by Wing-span, Aug 20, 2020.

  1. Wing-span

    Wing-span Hello Peter Rabbit. Shhh... go to sleep.

    Messages:
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    Location:
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    I want to give it a go before spending money on some decent scope rings, but I need to sort out a newly fitted scope which causes the rifle to shoot about 12" high and right at only 16yrd range!!! I am sure it is dodgy cheap scope rings, even though it is a one piece unit. I have removed and refitted the scope and mount to see if it was properly installed.

    The fix.

    I'm happy shimming for elevation correction, but what about windage, can you successfully shim for windage too?
     
  2. Leshiy

    Leshiy No 0352

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    Any form of shimming bends your scope tube at the end of the day
    Far better to own decent reliable kit that works as it should
     
    Reefmonkey and hmangphilly like this.
  3. Wing-span

    Wing-span Hello Peter Rabbit. Shhh... go to sleep.

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    Not when set of decent rings costs 50% of the rifle. This is for my Hatsan springer basher, which I was hoping to do on the cheap and from spares in the box.
     
  4. Lev Levvin

    Lev Levvin Beast of Bodmin !!

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    Remove the mount completely and turn it 180 degrees

    refit scope

    If your point of impact has moved along with the mount... it’s junk so spend £18 on some decent mounts from optics warehouse

    If you’re still hitting way too far to the right... it’s probably a bent barrel so if that’s the case I’d stop wasting money on that gun...:thumb:
     
    Guloluseus and hmangphilly like this.
  5. Leshiy

    Leshiy No 0352

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    If what your saying at 16yds no more windage and gun is shooting 12" high and to the right
    with a one piece mount your more likely to dent or miss shape the tube most scopes windage adjustment valuation is say 1 click 1/4 " @ 100yds you will require a fair amount of packing/shimming for 16yds
    Crack on
     
    hmangphilly likes this.
  6. buffy vampire slayer

    buffy vampire slayer LOW BELLEND THRESHOLD

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    never known anyone shim a scope for windage only the FT guys for elevation.
     
  7. robs5230

    robs5230 Oversprung

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    If you're having to shim for windage to that extent, something's well out of kilter (assuming the shot cycle isn't causing it)

    Try to borrow some other mounts to see if it still happens. If it is and the barrel looks straight, I'd suspect recoil, clipping or a barrel crown defect
     
    hmangphilly likes this.
  8. Wing-span

    Wing-span Hello Peter Rabbit. Shhh... go to sleep.

    Messages:
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    Location:
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    I flipped the one piece mounts. No joy.
    I bought and fitted sports match mediums. No joy, but interestingly the impact point was high and right again.
    I'm going to fit back on my previous scope to test, as it was shooting fine before. I'm starting to think it is a shot cycle issue (I have dropped in a couple of washers to increase preload, upping power to 11.3ft lbs.)

    I'll get there it's just removing the variables one by one.
     
  9. Wing-span

    Wing-span Hello Peter Rabbit. Shhh... go to sleep.

    Messages:
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    Location:
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    Sorted.

    The old scope shoots straight. The new scope, which will be returned! Is poorly aligned internally. As they say in Scotland.. a load of pish. People.. you have heard this many times before, ..you buy cheap, you buy twice.
     
  10. Wing-span

    Wing-span Hello Peter Rabbit. Shhh... go to sleep.

    Messages:
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    Location:
    Huntingdon, Cambridgeshire
    This rifle has scrubbed up well. I zeroed it after this recent banana scope issue and now I'm happy with it. The Vantage SF is more than I wanted on this springer, but it's shooting ok, so..
     

    Attached Files:

    paj likes this.
  11. brk1

    brk1 Posting Addict

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    I bought a cheap one piece to go on my HW100 once, not trying to be a cheapskate, I just wanted to try a one piece bridged across the magazine of the HW100, never seen such a piece of crap in all my life , I'll attach a pic if I can find it somewhere , could have shot round corners it lent over so far, your fitting it to a 9mm rail they said, it's designed for a 11 mm rail, I said the HW100 has got an 11mm rail on it, when you tightened up the dovetail clamps , because the rail on the HW100 block is flat, the claws when tightened, lift the mount up at a stupid angle, didn't even work on normal rounded action either.

    The main idea was to buy cheap, if I liked it I'd buy a proper one ,proper one piece are well expensive, so I got shot of it back to the seller straight away and stuck with BKL ever since, they seem to fit the HW100 block well :thumb:

    Just found it, sitting on just the block section of an HW100 which was apart at the time, to use the gun tilt your head 3 " away from the stock :eek::eek:, so don't buy cheap, it will be nasty :mad:. Before anybody says the clamps are on wrong it was worse the other way round :(

    cheap mount.jpg
     
    Last edited: Aug 21, 2020
    Wing-span likes this.

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