I bought one of the first contemporary Winchester Featherweights in 7x57 so am 40 years into it now. During that time frame I had had opportunity to observe field use of other cartridges compared to it and that is why it stays and sold rifles get replaced. It has one of the highest percentages of 1 shot kills and is so easy to shoot, I long ago made it a loaner when I was shooting something else. That way I still got to enjoy what it does so effortlessly well.
Was at the range twice last week with 5 rifles and 2 handguns. I saved the 7x57 until last savoring its ease of use, knowing it would perform the same tasks as its noisier safe mates which were burning a little or a lot more powder and making me work a lot harder to shoot them well.
The 7x57 puts pleasure back into recreational shooting.
