The .32 ACP (aka 7.65x17 SR) cartridge is a semi-rimmed cartridge.  That may be part of your problem.  Semi-rimmed cases are a compromise that fall between the true rimless rouds (such as the 9mm Luger or 9mm Parabellum or .45 ACP cartridges) and the rimmed rounds (such as the .38 Special or .357 Magnum).  The rimless rounds seem to feed without a bobble in self-loaders and the rimmed rounds are for revolvers.  The semi-rimmed case has always been (in my opinion of the design), not all that good.  The magazine for a self-loader is critical to the functioning of the pistol.  For rimless rounds, they work pretty well, but when handling semi-rimmed ammo they can be picky.  It may be that your magazines for your .32 are the problem (that was the problem with my Walther PP and PPK). 

 

I don't believe that you have an ammo problem.  The commercially loaded .32 ACP is pretty uniform between all the manufacturers and you probably turn over your ammo fairly regularly (that is, your ammo doesn't stay in storage for years and years). 

 

If your .32 is giving problems, see if you can pickup a new spare magazine or two.  That should probably cure your problem.  Also, make sure your Cobra is cleaned well and lubricated (except for the ammo).  Other than that, I would recommend upgrading to one of the 9mm calibers.

 

The three most popular 9mm calibers in handguns are the: (1) .380 ACP (aka 9mm Kurz or 9mm Short or 9x17 Browning); (2) the 9.2x18 Makarov; and (3) the 9x19 NATO (aka 9mm Luger or 9mm Parabellum).  These are all good cartridges and come in both FMJ ball rounds for practice and JHP rounds for defensive purposes.

 

If you can find a suitable replacement for your .32 ACP Cobra in one of these calibers, then let's talk more about what the best kind of ammo to feed your new pet.  Or, if you have several candidates you're considering to replace it, then this is the place to talk about the good points (and maybe bad points) of your replacement choices. 

Sounds like you need to recruit a co-driver.  Do checkout the Mak.  You will like it.  I have an E. German manufacture Mak and it is a quality piece.  The East Germans had a political system that sucked as well as their economy that was a basket case.  They could and did make very, very good ordnance.