Nice picture, but the only cartridge I would want is the 308 Win.
6XC — F Class target round
6.5 Creedmoor — designed in an effort to make cranky AR owners happy.
308 Win. An easy to reload cartridge capable of taking everything but Alaskan bears reliably.
300 Win Mag - belted nonsense, rifles that are much too light weight. OUCH!
300 Norma Mag — a 30 cal based on 404 Jeffery if memory serves. SUPER OUCH (shoulder and ears!)
338 Lapua Mag — Finnish anti-materiel sniper round that has deafened most of the soldiers (US) that have used it.
And monstrous recoil and muzzle blast. No thank you very much.
Now that I have attempted to slaughter many sacred cows (so to speak), flame away! LOL