Raimey,
The shell every 4.68 seconds is easily doable. Hitting 77% is also doable. But, for 13 hours straight? I wonder. I hold back on the shots, pretty much, and have averaged one shell per 14 seconds for a whole trip. What is amazing is the man's endurance. One would have to be in excellent physical condition. I'd say he was most certainly using a loader.
I've never seen an instance where "flock shooting" was doable. Even with the millions that one sees in the air on a trip, an individual bird has to be picked out and shot at. Out of roughly four thousand birds I downed last trip, I'll bet not over 10 times was there a true double, two birds with one shot. I use a light mod on the first barrel and a improved cylinder on the second.
Stan
