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    Re: Bubble horizon
    From: Paul Hirose
    Date: 2002 Dec 19, 12:00 -0800

    "Dr. Geoffrey Kolbe" wrote:
    > inside a ring foresight. Since I have shot at international level, and have
    > consequently spent many, many hours practicing the art of centering a round
    > aiming mark in the foresight ring, I do, perhaps, have an edge over most
    > people in using a bubble sextant.
    I think a bubble sextant is harder to "shoot" than a rifle. Centering
    the eye behind a rifle's rear aperture sight is reflexive. If the
    front sight is off, even a novice intuitively moves the right
    direction. But the none of the motions to attain correct sight picture
    in a bubble sextant is intuitive. These instruments challenge one's
    eye-hand coordination, and it is quite an accomplishment to get 1
    minute accuracy on land, unsupported.

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