Thanks. I remember that excellent article from 1986 - read it while on a Mule Deer hunt up past Camp Wood on the mesa with a 7x57. Aagard's piece was bountiful for me and I wondered at the time "Why didn't I have all of this good info back in 1962"?
62 was when I bought my first center fire rifle ever - 7x57 Chilean Mauser rifle from a Sears mail ad - $13.99 shipped plus 2 boxes of that Win 175 gr. round nose stuff. I won't bore you here, but have written quite a bit in the past about how I worked that rifle into a sporter and used it forever on a wide variety of game. Three others since then - all Mausers, one a Mark X.
It's all been said above - fab cartridge - an exquisite design well more than 100 years old.
