Re: .30-06 150 grain bullet drop
When you're done doing that, take a step back and think about reality as it applies to ballistics.
3.6" or 13.6" may sound all that neat and precise, but the real world doesn't work in precisely that way..., or in fact, in any precise way.
There's also natural dispersion; which means the 3.6" can probably be anywhere from 1 1/2" to 5 1/2", and 13.6 can be anywhere from 10 1/2 to 16 1/2" and so on, and that's a conservative estimate.
My point is that ballistic programs can give you ideal numbers, which then get translated into the real world as close approximations.
Greg