Personally I wouldn't bother scoping a 91/30 until it proves itself to be a bit accurate. if you cant pull of decent groups say @ 50 or 100 yards with suplus ammo then you wont have fun shooting @ 300 even with a scope.
My 91/30 right from the "box" sucked for accuracy. Minute of berm. I was close to chucking the thing in the closet to live its life in the darkness.
Yeah this is my only concern with my mosin archangel build that I'm picking up from Fred (50 BMG) at the Plymouth show on Saturday. I bought the rifle from Collectable Arms and immediately stripped it down and bought all of the parts (trigger, stock, scope, scope mount, muzzle brake) so I don't even know if the rifle is accurate. But at the same time, if I found out it wasn't accurate, am I really going to keep buying and selling mosins until I find a fairly accurate one? My M44 from Collectable Arms is pretty accurate @120 yards so hopefully the 91/30 will be too. I'll find out soon.