"Better Pattern" of course depends on what a person wants from said pattern. My personal Ideal pattern would be one having absolute uniform spread, the width of that spread of course determined by choke. We all should be totally aware that pattern does not exist & is not apt to.
The real question here is NOT pattern percentage inside the 30" circle but rather the distribution of the shot which are inside.
Some promote the larger bores as giving more uniform patterns while others promote the smaller bore on the "Fact" that by having a higher percentage of the shot in the central core they will actually ou range a larger bore firing the same shot load.
I will say I have not counted enough pellet holes to say positively one way or the other. I have fired 1 oz of shot with great success from 12, 16 & 20.
