Just to keep the bullet question in it's own thread, let's bring that interesting discussion about the crappy old Mosin rifle up here and compare it, by reputation, with all the other military calibers of the past 150 years.
This about the reputation of the caliber/rifle over it's existance. Not the number of enemy it has slain or even how many matches it has one or whether somebody has one that is a tack driver. There are exceptions to every rule.
Look over this list and consider the reputation of rifle and caliber.
I'll try to list them from memory but may miss a few.
6.5x54 Mannlicher (was this a military caliber?)
7.5x55 S/R Swiss
30 Gov't '06
Pick the top five most accurate (by reputation).
6.5x55 Swede, 7.5 x55 Swiss, 7.62x51 NATO, 30 Gov't '06, 7x57 Mauser.
The Krag rifle like the Springfield was a very well made rifle and very accurate. It didn't live long enough to make a rep for accuracy. The Swedish Mausers were very well made and very accurate and the caliber is still winning matches today. The same could be said for the Schmidt-Rubin 7.5x55 rifles. If anyone thinks the 308 and 30-06 aren't accurate, in their military rifles, he hasn't shot one enough. I think we could argue about the fifth place but the 7.62x54R won't replace it.
What'd I miss?