A lot of old rules of thumb and expediency (gauged balls to the lb)seem somewhat unusual in this day of precision mensuration. Sticking the old smoke pole up agin the house (the try square of architectural rectilinearity) is like that and words that imply value judgment don't help much either. Probably up and down pitch are more fitting in that they imply a slight depressing or raising effect on elevation of shot. Can someone explain the severe pitch on a Win 73?

jack