Originally Posted by Warlord
I assume with less velocity I'll have more drop out to 400 but maybe I can load some faster powders to try to reduce the disadvantage in speed. Thoughts?
No, not as long as the laws of physics apply but it is a commonly held belief but simply incorrect.
From the gyroscopic perspective a bullet cannot generate lift so it is null to the effect. ( tumbling, key holing, yawing makes it do weird things but do not generate lift). Only fins generate lift.
So the velocity in X ( speed of bullet along path alluding to distance) is independent and decoupled from the velocity in Y ( speed and pull of gravity relative to fall to earth)
There are factors ( external to the constants above) that WILL have a degree of effect thus giving the "illusion" that they are the same. Some of them are air density, aim trajectory V. linear datum trajectory, the muzzle distance to datum versus impact distance taking into account surface profile changes over distance then theres Newton's cannonball, Earth's rotation and a few others depending on how far one wants to dig into the science of trajectory.
At 400, I would not worry or be concerned.