As i first throught, it it a variant of the Savage Mod 340.
Bolt action, detachable magazine feed, side mount scope,
pressed checkering rifle.Not a bad gun. I had one once in 22 hornet.
They were built in .22 hornet, .222 Rem, .223 Rem. , and 30-30 Win.
Mfg. between 1950 and 1985.