The first thing I would do is slug the barrel to find out the diameter of the bore...they vary alot...most surplus is between .310 and .311
The ammo quality counts for more than the rifle when it comes to accuracy.
The Enfield MK IV No. 1 (the WWII version) with its peep sight, and the M1903A3 Springfield, also with a peep sight, are best-in-class when it comes to military bolt actions.I think the Enfield rifles and old WW2 Springfields had better sights than this rifle, better safety, and smoother actions, but this Russian Mosin Nagant is a functional rifle.
Thanks, I'm in the process of building a target Mosin from parts, am looking for changes/mods to fix the original before I have to spring for the Timney (but the side safety would be nice).The trigger weight is less, the geometry of the oposing surfaces are different, and no where near the travel... it makes it a better trigger all the way around...the trigger is the best upgrade you can do to a mosin...