Hi, own a model 40 in .22, states short, long, and long rifle will work in this bolt action rifle. Blued w/ 1 piece wooden stock with no stamps or markings. Detachable magazine looks to hold 5 or 6. Can't find any serial numbers but 327 is stamped on the barrel near the receiver. On the bolt side under the rear sight I found what looks to be a code or something. Has NP with a stamp over it then .22 then a small triangle above right. Then a - 610 8 TOWS. Keep in mind my eyes aren't the greatest but this is what I see. Did Savage make a war trainer? I've searched and googled model 40 but only come up with a newer style varmit hunter. Looks to be older, maybe 30-40's. I'd appreciate any info. Thanks, Dave