A user on Barfcom picked up a very nice Remington 660 the other day.
The Model 660 replaced the very ugly and despised 600, even though the 600 is known to be an accurate performer. The 600 had a rib on the barrel like a shotgun and that just didn’t go over too well with gun buyers at the time.
Very slick little sporters, they came in a variety of chamberings like the triple duce up to the .350. The bolt handle looks odd to younger shooters but it makes for some fast bolt manipulation. It may remind you of the Model 1917 service rifle. The action from the 600 went on to be used in the Remington XP-100 bolt action pistil. The gun that debuted the excellent .221 fireball cartridge.
If you get one, keep in mind that it is a Remington and there was a recall over the safety in 1979-1980 ish.