Remington Society

I have a model 722 in 300 Savage. s/n 281xx has ser no on bolt rail not tapped on rear receiver ring. ATT on left side of barrel. Right side has REP in an oval with what looks like the numbers 38 . What do I have ?

Thank you very much for the information. I have another question regarding the stock. It is not the plain wood stock, it appears to be stained Tiger Maple. The marking on the pistol grip and buttplate look exactly like the proof marks on the barrel. Any thoughts ? Thanks.

Hope I'm posting this correctly. I have a Model 722 in 222 Remington I am trying to date. S/N is on left side and is 189370. Same side on barrel is xxx 44 , any help would be appreciated.