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370 grains is about one-fifteenth as heavy as a Football (American)
In other words, it's 0.05832512315271 times the weight of a Football (American), and the weight of a Football (American) is 17.145270270270 times that amount.
(a.k.a. "pigskin") (NFL standard)
Per National Football League official rules, an American football must weigh between 6,125 grains and 6,562.50 grains. Because of NFL regulations, ceremonial considerations, and backup requirements, each NFL Superbowl requires the manufacture of 144 balls exclusively for the event.
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