Originally Posted by irs
Eleanor O'Connor's 7x57 was a Burgess/Leonard rifle.
https://gundigest.com/more/classic-guns/forty-years-little-7mm

Wow! Thank you for that wonderful article. Jack O’Connor was my favorite gun writer growing up, and greatly influenced me, I’d forgotten just how good he was. On top of that I now have even greater admiration for my Burgess-Leonard Mauser.