I have an original 1912 Oberndorf Mauser chambered in 9x57 that I am restoring. If it is a good shooter, I am thinking it would be a good option for plains game. If not, possibly rebore to 9.3x62? Any advice or thoughts are welcome! Many thanks!
9x57. 9.3x57, 9.5x57. They should all be wonderful calibers for close range work in the bush on plains game. Not your best choice for 250 yard shots on springbok, but that would be a wonderful choice for a 120 yard shot on a big kudu bull or a zebra.
You've got great taste.