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gunner's caliper: a instrument used to take dimensions in gunnery, such as the diameter of cannons and projectiles.
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gunner's compendium: an instrument combining several functions required by the gunner, often incorporating the gunner's sight and gunner's level, along with additional elements.
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gunner's folding rule: a folding rule carrying tables or scales specially adapted for the use of gunners.
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gunner's gauge scales: scales which provide the weight of a sphere (the shot) from a measurement of its diameter; in gunnery these scales were traditionally provided for iron, lead and stone.
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gunner's level: instrument used to set the elevation of a large gun, see article on the gunner's sight and level.
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