To the ground.
as far as it wants
It depends on how high you are when you drop it.
Sorry, you need to specify WHICH .308 bullet and at what distance. As distance increases, the RATE of drop also increases.
There is no one answer, since there is no one bullet. The drop of a bullet is a function of the speed- how long it took to get to 1000 yards. Some bullets will not TRAVEL 1000 yards. All other things being equal, the faster bullet will drop less.
how far does a 50 caliber sniper rifle shoot accuratly
There isn't enough info to give a correct answer. What grain bullet? What type of bullet? What is the initial velocity? How high are your sights about the bore axis? What range is your far zero?
Due to gravity, the bullet starts to drop the second it leaves the barrel. You can calculate the drop by factoring mass and velocity with gravity (9.8 m/s²).
ALL bullets fall at 32 ft per second per second. When you fire a gun, the bullet begins to drop as it leaves the barrel, To hit things further away, you aim higher. You can try this with a garden hose. Over a given distance, the bullet that will drop the least is the fastest- it simply gets there quicker, and has not had time to fall as far.
7400 meters.
A device that allows you to compensate for bullet drop
about 36km
A .50 magnum has a muzzle velocity of about 420 meters per second (1480 feet per second). The time for a .50 caliber bullet to travel one mile at a constant speed of 1400feet per second is around four seconds. After four seconds, the bullet will have dropped around 256 feet. In reality, the bullet is slowed down due to air resistance, and takes longer to travel one mile (thus it drops further). Also note that in theory, the caliber of the bullet does not determine how far it drops after traveling one mile. The muzzle velocity is the key parameter in determining this.