the wife and I took out the blue gun Re done Fin 39 we shot out to 700 yards great day 5 shots .360 wolf 200 grain SP Here the story I picked up a M39 Fin rifle, barrel was corroded, and stock was broken so I decided to make a fin sniper/target rifle but only modern. I contacted Lothar Walther http://www.lothar-walther.de/html/107.php and had them make me a barrel 25.6 inch target 11 degree crown, .310 bore Dia, chambered in original 7.62x54 R, the barrel is long chambered, I thread the barrel to 16 tpi / 60 degree as original, the made the extractor cut and shell lip with a dermal, worked well. barrel a. Chamber it to 7.62X54R Long chamber b. Contour it for #2340: Medium Target Varmint c. .310 Dia Bore d. 25.6" e. The twist is 9.44 I made a receiver mandrill out of bar stock on the lathe then trued the receiver witch was almost perfect in the first place; fins did a hell of a job. Ordered a tiger wood tacdriver stock from Richards micro fit gun stocks. http://www.rifle-stocks.com/ Ordered Scope mount, Allen screws, side safety and pillars from ken at Rock Solid Ind http://rocksolidind.com/products.html. Getting a hubber trigger from Tennessee Gun Parts http://www.tngunparts.com. I mounted the Scope mount and glass bed it for further stabilization, it did not need it but I figured why not, it is a solid mount with the side locking screw, well made, I cannot say enough about this mount so far it is the best aftermarket mount I have seen oe tried for a M39/91 it Rocks, no pun intended . I lapped the lugs by cutting and old barrel butting a spring in the chamber and half a shell casing to push against the bolt.