Ron: There is the rub of Sell's statement. At what range can you hit your hat- okay, lets assume its a fedora- every time? I have no doubt that the majority of Francis Sell's shots were at deer standing at less than 50 yds. Most of the deer checked into my check station were well shot, but so many werer riddled with slug holes that it was a shame. The next year, 1969, saw a significant improvement in the quality of sights that we saw on the guns, and there were fewer carcasses brought to the check station with multiple holes in them.
When I began hunting several years later, the one shot kills mounted , and the guns being used started sporting special slug barrels with iron sights already mounted on them. Within a few years, The Hastings barrel came on the market, and we started seeing these rifled barrels, with scope on them, and deer were still being taken with one shot, but the shots were often a little longer, indicating that the scopes were making it possible for hunters to comfortably shoot deer at longer distances. So, I think my experiences are similar to your own. I fired three shots out of my slug barrel at a 50 yd. target for a friend, and then let him shoot the next 2 rounds. My three slugs were touching, in the X ring, and his two were only an inch higher and still in the X ring, for a group that would easily fit in the palm of your hand. Obviously, we see the sights differently, and I knew my own gun better than he could know it, accounting for the wider group he fired. With that gun, and ammo, I believe I could reliably hit my hat out to 80 yds, and probably then some. I am working on that performance with my 20 ga. Fowler, and hope to have some good targets to show someday soon. Since the longest shot I have ever taken on a deer was at 40 yds., I don't think it necessary to be able to shoot that well at twice the distance. And, if your experience is correct, most other hunters still kill their deer in thick cover, at relatively short ranges.
Paul