As the owner of 3 Mosin's I say get a new rifle. While Mosin's are fun they aren't as accurate as a good new bargain rifles. Also, you can't scope one very well, and scout scopes are low power and too far from the eyeball to do a first rate job at distance. Also, installing a scout scope takes some work and the mounts that fit on the rear leaf sight holder are either expensive or they stink. If you drill the receiver for a scope mount then you have to bend the bolt and that adds another $50. That $100 rifle becomes a $200 + rifle real fast. Then you have the ancient wooden stock to deal with, the lack of any recoil buffer for your shoulder, the heavy trigger, and a host of tiny problems that while easily solvable will take some time.
I think you'd be far more accurate with the Marlin XL, Vanguard or Stevens.
I have a Steven's in 223 and it is better than 2moa with wolf 62gr. ammo and less than 1 moa with 69 grain ammo at 100 yards. I had to put a lighter spring return in the trigger and fill the stock with BB's to get the weight up for bench shooting. Really minor fixes compared to a Mosin.
I think you'd be far more accurate with the Marlin XL, Vanguard or Stevens.
I have a Steven's in 223 and it is better than 2moa with wolf 62gr. ammo and less than 1 moa with 69 grain ammo at 100 yards. I had to put a lighter spring return in the trigger and fill the stock with BB's to get the weight up for bench shooting. Really minor fixes compared to a Mosin.