Just my take on the "new" short stuff. Mostly HYPE so the companies can sell more New guns. Sales on firearms has been in the doldrums for a few years. There may be some useable calibers in the mix...but I really don't think so. I am old enough to remember when the "new calibers" were brought out. There were calibers that were designed to fill niches that weren't filled at the time. Things like the 338 Win(in fact I at one time owned the 11th mod 70 ever made in the 338) and the Norma calibers like the 358. Personally I think the ol 300 H&H was just fine but they "Improved" the sucker 3 or 4 times. The 7MM Rem Mag(have 1) was nice as was the 25-06 and 22-250(have 2)(they were wildcats till the 60"s ya know). But the niches are filled and the new stuff really isn't enough better than the old to make much difference to any critter we may shoot. Yeah... I like new rifles etc but I'll leave the Ultra high priced short mags etc alone till they can prove they are so much more necessary
Guess it just goes to prove I'm an old stick in the mud fuddy duddy