Whether a caliber is popular or not or even on it's last legs according to some has nothing to do with whether it is the right cartride for you...unless it would mean you couldn't find ammo. In that case you could reload like I do. They will always be an ample supply of 308 cases and resizing up or down is easy. Reloading is fun, saves the cost of factory ammo (which allows you to shoot more) and you can tailor your load to your situation. I've been doing it for 53+ yrs and find it almost as fun as shooting.
Be Safe/Have Fun!
NRA Life MEMBER