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Re: Bubble horizon


Subject: Re: Bubble horizon
From: Paul Hirose (paulhirose@XXX.XXX)
Date: Thu Dec 19 2002 - 15:00:50 EST


"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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