An eprouvette is a one piece, fixed elevation mortar used by ordnance departments and armories to test the strength of gunpowder. A carefully weighed quantity of powder (charge) was placed inside the device, followed by a standard weight shot.
An eprouvette is a one piece, fixed elevation mortar used by ordnance departments and armories to test the strength of gunpowder. A carefully weighed quantity of powder (charge) was placed inside the device, followed by a standard weight shot.
Source: Wikipedia "Eprouvette" · CC BY-SA 4.0
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