Correction for the weight of a Baseball
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How heavy is 4,800 grains?
It's about two times as heavy as a Baseball
The weight of a Baseball is about 2,242.18750 grains.
(MLB rules)
Per Major League Baseball rules, a baseball must weigh between 2,187.50 grains and 2,296.8750 grains. A major league pitcher can throw a baseball at up to 150 kph (91 mph) (with a fastball pitch), with record-setting pitches as fast as 171 kph (106 mph).