I have to say I'm not exactly setting the world on fire with new cartridge hype. Several of my rifles are chambered for 100+ year old cartridges and I don't think I have any that are less than 50 years old.
All the new stuff sounds sexy but if you can't find ammo/components all you end up with is a wallhanger.

I am continually astounded at how quickly people make up their minds on little evidence or none at all.
Jack O'Connor