Yeah, I too have dedicated some time. At best, the overall shape of the pattern and an overall density can be estimated. But this thing, shot column, game & all, is 4D(& dynamics or damn-namics as we referred to it in Optical Engineering classes) so actual position or spacing of the shot cannot be calculated in a finite manner as it is random. Spent some time w/ Gil Ash in Bolivia & his barrel cam is impressive as you can see why you miss...... Evidently he knew Brewster well & we spent hours discussing shot columns while I sipped corn chicha.


Cheers,

Raimey
rse