Ozzy, I am actually a little confused by your insistance that these rifles are junk. If they were junk how is it that they are still around and functional after 70 + years? If you get a cartridge stuck in one of them, you can lay it on a flat surface and stomp on it and the rifle will be fine afterwards. Don’t try that with a newer rifle or even most other vintage rifles. Mosin Nagants are the ultimate tough rifle. If you find a good one and actually do take care of it, they can be pretty accurate also.
I put on a Mosin shoot where we shoot half shilouettes (20” wide) at 2,3 and 600 yds. Prone, unsupported with a sling for support only. Good shooters hit at 600. Most rifles can outshoot 99pct of shooters.