I've got a good old sporterized Model of 1917 (Winchester) that I've been shooting & hunting with most of my life. Dad sporterized it shortly after returning home from WWII, and I first shot it back in 1966. I like the old beast, as does my youngest son. He took a buck this year and a bear last year with the old rifle.
Toying with the idea of bumping it up to something with a bigger bore, staying with a .30-06 based case:
.338-06
.35 Whelen
9.3x62 (don't know much about that one, but it sounds cool)
Is there more involved than a simple barrel swap? Feeding issues?
Thanks, Guy