Too cool all around. I shot my first deer with my Dad's Remington 03A3 (sporterized) at age 13 in 1974. I always hoped to inherit it someday but it's long gone. I've wanted a Springfield ever since but haven't found the right one. I'm envious - yours is exactly how I'd want one...
Edit to add: not sure if this helps with the ammo question, but we always practiced with milsurp ammo and hunted with Remington 150 factory rounds which shot to the same point.