Many of those rifles were rechambered to 308. These rifles were often not marked as 308's.
Actually, I think 260Remguy converted them all to .30/284.
I converted one to 30-284 to do load development for my 99C in 30-284, but decided that the bump in performance wasn't worth the effort so I pulled the barrel and recycled the action, #1375xx, as a 25-284. I found this 722 in the old GUNLIST and paid J&N Pawn in West Valley City, UT, $250 back in 2002. I ALWAYS restamp/over-stamp the factory roll stamps on a barrel that I've rechambered. Bearrr264 had the cheeks of a stock on a Savage 99 blow out when he fired a 300 Savage cartridge in a barrel that had been rechambered to 308, but not restamped.
When I was getting my MBA back in the mid-1980's, I made pocket money by converting 722s in 222 and 300 Sav to 20" barrel carbines for guys who wanted 600/660s, but didn't want to pay the asking prices. I sold my 722 carbines for $250 without a front sight or $275 if I installed a Williams ramp front sight.