.223 rem for plinking and teaching kids
260 rem for competition, target out to a mile and medium to large game
7mm-300 Norma for everything else on the planet I might ever need it for, and elr shooting.
The best argument I have against the old cartridges is kind of two parts. First everything absolutely depends on specific needs and wants. All things being equal though, you can get bigger quality factory ammo for cheaper with some of the newer cartridges than you can with the old ones. Powder...