What do you do with a gun magazine that is unreliable? From what I read on the Internet, the prevailing theory seems to be toss it and get a new one.
Some like the ones for my M1 Carbine were expected to be somewhat expandable since they would be used in combat. Other civilian magazines theoretically should last the life of the gun.
I recently bought a couple 30-cal Carbine magazines. One does fine, the other does not; fortunately, I can turn back the latter for another.
A bigger mystery is two extra magazines for my 10/22 Ruger Rifle. They are Ruger brand, transparent, and the original is black. The original does fine but the two transparent are erratic, usually failing to feed at least once in 10 shots.
The Ruger manual says don't try to repair those rotary magazines. Other sources suggest otherwise, but "repair" is mostly soaking and cleanup, and these are brand new.
So for whatever kind of gun you use magazines in, do you generally try to fix an erratic magazine or just toss it and get a new one?