wear and tear on you old gun is kinda like a badge of honor, just oil it up.
.....for a economy scope that will work okay look at the banner line, (bushnell). they are on the site you found the other stuff at.
.....the scope mount that works on a 340 savage does not allow for a bulge around the adjustment turrents. you need a scope with a straight tube. i have the mounts weaver makes on my dads 340!
btw, it has plenty of charisma too. bobn