Perhaps he realized the same thing the military figured out a couple generations ago. The gun is handy but the cartridge is inadequate and antiquated. A modern pistol caliber carbine is just as handy, cheaper to shoot, and as effective.
Sort of but again the .30 carbine was always just a stepping stone for me before I got a .308. It's that time for it to go now. I love the gun, it's fun to shoot but it's time for the .308