If you are deeply interested in patterns, read Dr. Andrew C. Jones's book, "Sporting Shotgun Performance - Measurement, Analysis, Optimisation." Dr. Jones deals with statistically viable data. Data is obtained by feeding a computer program digital photos of patterns. One of the most enlightening findings is that patterns have so much variability that one must have ten (10) patterns with the same factors to get reliable data. This sort of data is capable of predicting "X" hits on a target at given range. Now that is a true prediction of performance.
Rifle fire uses the same type of statistics. Should you shoot 3 shot groups? 5? 10? How about 600! (sounds suspiciously like a shotgun pattern, no?)
I have no idea why O & T did all that work and then fell flat with their analysis.
DDA
