bullets start drop as soon as it leaves the barrel. the amount of drop between 100 and 200 is nothing to even argue over. however a .308 smk @2650fps at 300' asl and 90* with 30% humidity will drop around 2moa at 200 yds...Just for fun I'll recount an argument I get into with some folks at the range shooting an M1A. If you zero @ 100yds, do you add or take away a "Click-or Two" to hit the same spot at 200 yards? For example, a SMK 168 in front of 41gn IMR 4895, is the trajectory rising above, or falling below, line of sight between the 100 and 200 yard mark? If you leave your elevation set at your 100 yard zero, and you are an Alvin York class marksman, does your bullet impact at 200 yards high, low, or the same?
Not sure I agree with you there .... physically speaking, if that were true then rockets would never get off the ground.bullets start drop as soon as it leaves the barrel.