Drop is based on velocity, velocity over the length of the distance traveled. Since both bullets will have similar effects from gravity, the one that is traveling faster for the length of travel will have spent fewer milliseconds subject to gravity. Yet heavy bullets often due that better than the lightest loads.
The bullet is slowed by air resistance. The more surface area, and the shape of the projectile relative to its total mass determine how much it is effected.
Heavier bullets actualy tend to have more forward moving mass for a given surface area ratio. So even though thier initial velocity will be lower in the same loading, thier overall bullet drop over distance is less because at range they are going faster.
This is all factored into the ballistic coeffecient.
The ballistic coeffecient combined with initial velocity will tell you just how much drop you will have over distance.
Heavier bullets of the same shape will usualy have more mass without much more airflow resistance.
So they travel further with less bullet drop.
Obviously if it is so heavy it is significantly slower than a standard loading, then the initial velocity is a larger factor in that particular loading than the weight of the projectile.
There is a curve created by the pressure limitations of a loading. You will find the best projectile for a given range in that curve. Heavier than a certain point will drop more, and lighter past a specific point will drop more, at a given range, for the same shape and diameter projectile.
The bullet is slowed by air resistance. The more surface area, and the shape of the projectile relative to its total mass determine how much it is effected.
Heavier bullets actualy tend to have more forward moving mass for a given surface area ratio. So even though thier initial velocity will be lower in the same loading, thier overall bullet drop over distance is less because at range they are going faster.
This is all factored into the ballistic coeffecient.
The ballistic coeffecient combined with initial velocity will tell you just how much drop you will have over distance.
Heavier bullets of the same shape will usualy have more mass without much more airflow resistance.
So they travel further with less bullet drop.
Obviously if it is so heavy it is significantly slower than a standard loading, then the initial velocity is a larger factor in that particular loading than the weight of the projectile.
There is a curve created by the pressure limitations of a loading. You will find the best projectile for a given range in that curve. Heavier than a certain point will drop more, and lighter past a specific point will drop more, at a given range, for the same shape and diameter projectile.