I have no problem believing most of these stories. I think I may live a parallel life with MnMan. I grew up in West central Minnesota and either myself shooting or was a witness to a lot of the exact types of successful shots. Witnessed a buddy here in Alaska shoot the head off a flying ptarmigan with a .44 pistol at about 80 yards.
I was able to pull off some of these unlikely shots because my friends and I found our entertainment by shooting constantly. Once we had drivers licenses, we had a regular route of dumps we would visit and there was no end to the targets we found there. We were a competitive lot and always tried to beat the other guy. There were some pretty interesting rat hunts there too. We would also cruise the countryside looking for critters that we could eliminate. We were not like most kids and spent most of our free time shooting or being in the woods hunting. We practiced quick drawing our revolvers until my friend put a bullet in his calf and I shot a welt down the backside of mine. We had no video games then. The dumps, if there even are any of them any more, are closed to any shooting and there are few places to shoot any more like we used to. Everywhere you go now around here it is populated to where shooting is not allowed, or I would be doing more of it like the good old days. I witnessed one of my friends on one of our outings take a crow that was perched on the top of a corn stalk. He leaned across the hood of his 1954 Ford with his Remington bolt action scoped .22 and shot the crow at 180 corn rows away, .plus the distance from the road to the corn.