I picked up a gently used 10/22 with a nice weaver scope and pistol grip integrated stock. Very nice gun. One thing though, after a few dozen rounds the gun would jam. I would look at the magazine and it seemed to not hold the cartridges correctly (spring loose and cartridge not proped up all the way). I bought a new magazine and within 50 rounds it was doing the same thing! Never heard of something like this. My dad has a 10/22 from way back - all original, never ever a problem Any ideas? Thanks for your comments.