Did you use cast bullets? I remember reading about Paco Kelly's "cat sneeze loads" . He mostly used cast, heavy for caliber bullets and tiny charges of fast burning powders like bullseye.
Not to hijack but the Keltec P32 was mentioned. I've carried one for more than 15 years and it finally started to malf. Keltec replaced everything but the slide INCLUDING the frame at no charge. Even paid shipping. WOW, what a company. A