Purpose
The intent of the buck and ball load was to combine the devastating impact of the full-size (normally .65 caliber) ball with the spreading pattern of a shotgun, and served to greatly improve the hit probability of the smoothbore musket used in combat, especially at closer ranges, where the buckshot would retain significant energy.
Claud E. Fuller, in his book The Rifled Musket, shows tests of a rifled musket firing Minie balls, and a smoothbore musket firing round ball and buck and ball rounds at various ranges. At ranges of 200 yards (180 m) and under, the buck and ball from the smoothbore musket, while less accurate than the rifled musket, actually produces a greater number of hits due to the greater number of projectiles; 37 of 50 Minie balls, vs. 18 of 50 balls and 31 of 150 buckshot, for a total of 49 hits in 50 shots. Beyond this range, the buckshot will have lost too much energy to be effective due to its lower ballistic coefficient.
Read more about this topic: Buck And Ball
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