It was not uncommon for shots in the 40+ yard range to be considered desireable back in the 50's. Bear, Pearson, Hiil, Wambold, Dougherty , Lee....almost anyone who was big in bowhunting back then did it and wrote about it on a routine basis. I even saw a movie where Ben Pearson shot a javie at 100 yards! One thing about Wambold, however, is that he had a column in one of the magazines back then and he became very fond of the Black Copperhead Slicer broadheads and pretty much stopped using all others in favor of them. I followed him closely as a kid and remember how much he liked those Slicers. I still have a few of them that I got just because he was so positive about them.
Another thing to remember about those days was that most all tournaments were Field Archery and not 3D. We shot four arrows at 28 targets all the way from 10 feet to 80 yards. After shooting at 80 yards 40 was a piece of cake for most of us so seeing a deer in that range and taking a shot was not considered to be unethical or even unusual. A 25 yard shot that you missed was an embarrassment. Tree stands were rarely in use then unless you actually went out and built a wooden platform.
It is true however that some things have not changed. Sharp broadheads, picking a spot, tuning your equipment, hunting with the wind....the basics are still the same. The biggest change and it is a paradoxical one is that trad equipment is better than it ever was but accurate shooting distances have shrunk from 30-40 yards to 10-20 yards. Go figure!
As for the accuracy of those who took long shots....I hunted at Mike Palmer's a few years ago. We are both "old timers". We talked some about hunts and I told him I took a caribou at a paced 55 yards. He grinned and said he had done that, as well, except that his was a running shot! I have to say, but am not necessarily encouraging it, but some guys, like Paul Shaefer, Barry Wensel, John Schultz, Ferguson (and I wonder about Ron Leclair) and others, have taken game on a routine basis with shots that many of us would consider unethical in terms of distance. The long game is not a game for everyone, but there are guys out there that can do it and do do it.