Muzzle initial velocity leaving the rifle for russian made 7.62 57-N-323S cartrige bullet:

weight of the bullet

Angle of the rifle

initial height (rifle above the ground level)

final height:

x and y speed components

final velocity of y axis:

Final velocity:

Flight time:

distance traveled (ground distance)

Maximum height:

with drag:let's supose that the bullet is round...

drag coefficient:

density of the air:

apex height for model with ressistance

velocity at the apex:

Flight time:

Flight range:

final velocity:

Final or terminal velocity: