According to "The Box of Truth"

At close range, reduced recoil loads seem to shoot a tighter pattern. But the difference is small, i.e., 1 3/4 to 4 inches. As always, you have to aim a shotgun at close range. The patterns are tight.

Good comparison with some different 00 buck loads
The Box O' Truth #20 - Buckshot Patterns - The Box O' Truth
Norm