Originally Posted by ttpete
Do a detail strip and clean it thoroughly using cotton swabs and an old toothbrush with some solvent. I like acetone or lacquer thinner. Take the magazines apart and wash them out, then check for bent feed lips. Get the bore and chamber squeaky clean with a wire bore brush. Inspect for problems, then reassemble, lubing as you go. And try some different ammo.
If you still have the little stock grips on the 642, I wouldn't blame her for not liking it. Try some bigger rubber ones, maybe Pachmayrs. There's also nothing wrong with using .38 Special wadcutter target loads. They will reduce felt recoil and still be effective.
I've cleaned this Sig down to the nitty gritty couple of times, but i'll do it again.
Yeah, its stone stock, but she hates it. We did run the .38+p's through it, but its in her head now. She needs something less then that.