Although it doesn't say so on the rifle, the Springfield is a Mauser. I belive it was after WWI, I don't think before, we even paid Mauser for what was basically patent infringement.
I do understand what you're talking about though. Sounds as if the hunt is on for a Krag. Good luck and I believe you'll really enjoy the process.
tomc, my 03-A3 shot like a house afire too. A 5 gallon bucket wasn't safe at 500+ yards with battle sights and 1 1/2 in. groups at 100 with the same sights were the norm. I don't recall mine being "crude" or a "sows ear" but some of the Smith Corona's I've seen certainly were.