I have an older Walther 32 ACP I recently traded on. New magazines from Walther(S&W) were purchased.Ammo is FMJ: Winchester.Aquila,Prive Partisn, and Fiochi. I have researched rimlock and do not think this is the problem. While firing,it appears the ejected case does not eject full sitting on top the next round.It is not a stovepipe nor is the next round trying to be chambered.This occurs at random. The pistol is well cleaned.Could the extractor be the cause? I am open to suggestions. Thanks, Byron