Re: barometer setting
Some areas use different units of measurments such as In.Hg. or hpa ect....Most hand held weather stations have the ability to use any popular units of measure. Remember that most airports give you the pressure at sea level regardless of the actual altitude. The best thing to do is set the offset to zero and this will give you station pressure. This is pressure at location regardless of altitude. This is the best way to calculate ballistics (IMHO) so long as your software is set on an altitude of zero regardless of your actual altitude.
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.