... the 7mm-08 seems like it would be much easier to find good factory ammunition for?
That is without a doubt accurate. But with handloads, which I expect most 7x57 shooters use, it's an entirely different story. I believe it was AussieGunWriter (John) who someplace wrote that the 7x57 is a hunter's cartridge. I think the versatility as a hunting cartridge, using bullets from 100- to 175-grains in all sorts of configurations, is where the old cartridge shines. And it has for the past 126 years.
"An archer sees how far he can be from a target and still hit it, a bowhunter sees how close he can get before he shoots." It is certainly easy to use that same line of thinking with firearms. -- Unknown
