Letter | Published:

The Measurement of Pressures in Guns


IN a paper “On Methods that have been adopted for Measuring Pressures in the Bores of Guns” (Report of the British Association, 1894), Captain Sir A. Noble has remarked that it seems to him “that there is no method so satisfactory, despite its attendant labour, as that of making the projectile write its own story” (p. 540). That might be sufficient for smooth bore guns, where there was little or no friction in the bore, but it is quite unsatisfactory when applied to rifled guns, and especially B.L. guns.

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