Aerodynamics of Spheres
There is a table of pattern density attached. It is gauge independent, based upon the aerodynamics of spheres, the initial charge weight, using 7 1/2 shot. and the percent of the initial charge in a thirty inch circle. Note that 1 ounce at .5 (50%), 7/8 ounce at .6 and 3/4 ounce at .7 are about the same at 40 yards. It would be necessary for the 1/2 ounce to pattern 100% to equal these.
The 1/6,1/3, 2/3(misprint should be 1/2) and all columns refer to the standard deviation, based on the mean number calculated from several patterns. That is 1 shot in 6 contains less than that number; 1 shot in three contains less than the second column; one half contain less than the mean, and all shots less than the last number.
Best, Austin
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