Re: Cosine and Degrees formula help please.
Bullet drop from zero - (actual drop * angle multiplier)
Actual drop is drop from a level bore not angled up for a longer zero. In other words anything past the muzzle would be a negative number.
500 yards = 40" drop from a 300 yard zero, and 88" without a zero. The shot is a 30 degree angle. The angle multiplier for 30 degrees is 0.134
40 minus (88*.134) = 28.2"
88*.134 = 11.8
40-11.8 = 28.2
Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.