The 264 is about as obsolete as the....well....the 26 Nosler, the 7mm LRM, the 300 WSM,etc etc.
I don't think anything invented since the 30/06 or 7x57 is "obsolete". Unpopular maybe, but not obsolete.
Sit in the butts and listen to bullets from any of these cartridges come cracking over your head from 500-600 yards away,and we won't think any of them are obsolete.
