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I think I’d say my 1903 Springfield because it as so many of the qualities found in the other rifles we are speaking of. The .30 06 cartridge made the Springfield 03 rifle, hands down.
With that said; I believe the Schmidt Rubin K-31 in 7.5x55mm would have surpassed Springfield 03 in combat; if give that chance. I have both rifles in near 99% shape; over the many years.
If there’s a cartridge out there that would given the venerable .30 06 Springfield cartridge a run for it's money, it’s the 7.5x55mm. The 7.5x55mm is nothing more then the wildcat target cartridge many competitive shooters have used for 1k shooting over the years, the .30x284 Win.
As a rapped fire bolt action rifle, the K-31 stands alone, it’s just damn fast! It’s a very comfortable rifle to carry & shoot, it can be stripper feed or magazine feed. The trigger for a military rifle is perfect. Iron sights {ladder} works great, although if you use a diopter peep it work much better.
Anyway that’s just my 02
Cheers
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