Savage Mod 64, Possible magazine problem

I've put about 800 rounds through my savage. The first 500 had constant problems with jamming. Changed ammo problem solved. Today it seemed like the magazine was binding and the ammo would not slide out. I was using cci mini-mags.

Any suggestions? Should I order a new magazine?

Have you cleaned the magazine at all. I have put a good 1200 rounds through one magazine, cleaned it everytime and had no problems.

Maybe I haven't cleaned it good enough. I sprayed it with break free clp and wiped it off. How do you clean yours?