Thanks for the information on the ammo. I did not realize that it was supposed to be NEW PRODUCTION.
I shoot a bunch of the old military rifles also. My M-39 (unissued) B barrel Finn is a tack driver with my handloads. I have never really found any of the military ammo that is really accurate in this rifle. I went with some friends to an old strip mine to shoot once and we were shooting at a 36" red painted circle on a big rock at just a few yards over 1000 from our shooting position. There was very little wind that day if any. Once I got the proper notch on the iron sights figured out I could hit inside that circle every time from prone with a tight sling. I was shooting the most accurate load I have ever found for all the MANY 7.62X54R caliber rifles I have. 50 grs AA 4350, Prvi case, CCI 200, .311 diameter 174 gr Sierra Match King, OAL 3.000 and I use a Lee Factory Crimp because it makes it more accurate than without. Some rifles of this caliber need a .312 diameter bullet. I use the same load as above but use a Hornady .312 174 gr RNSP, OAL 2.790 .
I won't even get into the outstanding accuracy that can be gotten out of a M-96 Swede Mauser in 6.5X55 or the K-31 7.5X55.
OK, I will relate just one 96 Swede story. A friend and I were shooting pop cans off a rail set up at 200 meters at a local range with these stock open sighted rifles OFF HAND. A couple people came over to watch us. They said that they would not have believed it if they had not seen it with their own eyes.
Those were relatively easy targets with these outstanding accurate rifles.