| With | ¹⁄₂ | the shot’s | weight | 285 | feet |
| ¹⁄₃ | Do. | 200 | |||
| ¹⁄₄ | Do. | 150 | |||
| ¹⁄₆ | Do. | 115 |
6. That the resistance of the air against balls of different diameters with equal velocities, is very nearly in the proportion of the square of their diameters; or as their surfaces.
7. That the velocity is not affected by compressing the charge more or less; or by heating the piece in different degrees.
8. That a very great increase of velocity arises from a decrease of windage; it appearing, that with the established windage of ¹⁄₂₀ between ¹⁄₃ and ¹⁄₄ of the force is lost.
9. It also appeared, that by firing the charge in different parts; by varying the weight of the gun to lessen the recoil; or even by stopping the recoil entirely, no sensible change is produced in the velocity of the ball.
10. That though the velocity of the shot is increased only to a certain point peculiar to each gun, (a further increase of powder, producing a diminished velocity) yet the recoil of the gun is always increased by the increase of charge.
11. Velocity of a light 6 Pr.—length, 4 feet 8 inches; charge, ¹⁄₃ the weight of the shot; 1558 feet per second.—6 Prs. heavy; 6 feet 8 inches; charge ¹⁄₃ = 1673 feet.
Velocity of a light 3 Pr. length, 3 feet 4 inches, charge ¹⁄₂—1371 feet per second.
Do. Heavy 3 Pr. length, 5 feet 9¹⁄₂ inches, charge ¹⁄₃ the shot—1584 feet.
Velocity of French Ordnance.