Re: Mils or MOA?
Relating everything back to inches is a calculation that will slow you down. Angular measurements are distance insensitive. Once you get used to evaluating the size of your target RELATIVE to its distance, not just its static size, then thinking in angular measurement becomes faster. Also once you have a matching FFP reticle to your knobs, two less mental calcs are required.
It all comes together when you can consider your distance and the relative size of the target compared to the distance, your wind call, and your holds over and off as one related real time calculation. When you evaluate your shot in this fashion, inches become irrelevant.
The time the actual size of the target becomes relevant is when trying to range it with a reticle, so in that case you need to know or estimate its static size in order to derive the distance.
Once the distance is known, here are some important questions and answers.
When someone asks me, "how many inches is that?" my answer is "who cares".
The question I most often ask myself when considering a wind call is, "how wrong can I be and STILL HIT the target?" The answer to that question can only be answered when knowing the angular dimension of the target relative to the distance you are currently from it. Over doping to the up wind side of the target is the easiest way to miss; "giving away the target", that is holding off of it, without understanding how much angular dimension relative to the possible range of your wind call you have to work with is how to drive your hit percentage down.