Bullet Speeds with Black Powder

Below is a chart of the Bullet Speeds with Black Powder. First Column is the Lead, 2nd Powder and third the speed.

In order to calculate bullet speed you'll need to know this formula.
With black powder and ogival head bullet, length between 2 and 3 diameters, a powder charge of one third the weight of the bullet gives a first second speed of about 1,600 ft. To find the velocity of any other charge, multiply the powder weight by 3, divide by weight of bullet, and multiply the sq. root of the quotient by 1600. The product will be the space covered by the bullet in the first second.

Lead . . . Powder . . . Speed, f.s.
1 . . . . . . . . . 1 . . . . . . . . .2570
1.5 . . . . . . . . 1. . . . . . . . . 2325
2 . . . . . . . . . 1 . . . . . . . . .2135
2.5 . . . . . . . . 1. . . . . . . . . 1975
3 . . . . . . . . ..1. . . . . . . . . 1850
5 . . . . . . . . ..1. . . . . . . . . 1535
10. . . . . . . . . 1. . . . . . . . . 1035