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Tony: According to the Lyman Black Powder Handbook, a .44 caliber revolver using a .451 round ball and 8" barrel.
19.0 grains of FFFFg powder gave them 772 fps and 182 ft./lbs. energy with 5,240 LUP of pressure.
37.0 grains of FFFFg powder gave them 960 fps and 282 ft./lbs. of energy with 7,420 LUP of pressure.
19.0 grains of FFFg powder gave them 706 fps and 153 ft./lbs. of energy with 5540 LUP of pressure.
37.0 grains of FFFg powder gave them 1032 fps and 326 ft./lbs. of energy with 7,940 of pressure.
These charges were their minimum and maximum charges.
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You know the rest. In the books you have read
How the British Regulars fired and fled,
How the farmers gave them ball for ball,
From behind each fence and farmyard wall,
Chasing the redcoats down the lane,
Then crossing the fields to emerge again
Under the trees at the turn of the road,
And only pausing to fire and load.
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