Ypurs is definately a Sako. Nice rifle

The Finns picked up a lot of mosin nageants off the battlefield and rebuilt them, by 1944, the war was over for them as far as fighting goes.

Definately shoot it before deciding that its shot out, use .308" bullets. The Finns paid a lot of attention to details in building their rifles and took very good care of them, it should be an excellent shoo
I would defeinately reccommend against bending the bolt or drillign the receiver, the rifl eyou have is worth well over $300 in original form and worht far less if molested.

You can buy scout mounts thta repalce the rear sight leaf from B-Square or even better do a search for 'Darrels scout mounts' and use a LER scope with the mount.