Bore sight ?

Discussion in 'Weapons, Technology & Equipment' started by James S, Jul 25, 2018.

  1. James S

    James S Very Senior Member

    Made by Barr and Stroud , a naval device, how does it work I have not got a clue. 669.jpg

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  2. James S

    James S Very Senior Member

    IMG_3498.JPG IMG_3498.JPG IMG_3499.JPG IMG_3497.JPG
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  3. timuk

    timuk Well-Known Member

  4. Alex1975uk

    Alex1975uk Well-Known Member

    We had bore sights in Challenger 1 tanks in the 1990’s ( chieftain before it also) I’m assuming the principle is the same
    Basically you place the bore sight in the barrel ( at the end) stand on a chair and look through it ( normally a 90 degree viewing lense) the gunner in the turret lays the sight at a target at 1000m. When the gunner says the gun is aimed at the correct spot the man looking into the bore sight can see if the gun and optical sighting system are looking at the same spot. Adjustments can be made within the sight until both are looking at exactly the same point.
    Make sense?!

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  5. robins2

    robins2 Active Member

    and centurion before chieftain only we used yards??
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  6. Alex1975uk

    Alex1975uk Well-Known Member

    And an abacus ?!
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  7. chrisgrove

    chrisgrove Senior Member

    No, people could count and do mental arithmetic in those days, before calculators.
  8. Alex1975uk

    Alex1975uk Well-Known Member

    Thanks for that amazingly light hearted reply, in tune with the rest of the comments.

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