The Bliemeister method, named for Louis Bliemeister, the man who patented it, is a process for making lead shot in small sizes which has largely supplanted the shot tower method. In this process, metered molten lead is dropped approximately 1 in (25 mm) into hot water, rolled along an incline and then dropped another 3 ft (0.91 m). The water temperature controls the cooling rate of the lead, while the surface tension brings the ball into a spherical form. Antimony, added for hardness, lowers the melting point of lead.[1]
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