I'm about to get my 1934 Springfield '03 rebored to the circa 1905 9.3x62 Mauser. I'm having a 1918 Springfield rebarreled to .256 Newton. And the icing is going to be the 9.5x57 project.
That'll hold me on old for a little while, as long as I keep working the .270, .257 Bob, 6.5x55, 7x57, 8x57, 30-30, 35 Rem, 35 Whelen, and that old 30 Gov't 06 on the side.
Jumping forward a few decades I have some .243s and a .358 Win, and a .223 Rem.
I do have a .270 WSM, but that's about it for new stuff in the last 50 years or so - don't feel like I lack for anything...
Cheers,
Rex
