OK, I am somewhat lazy. Last week I realized I had not cleaned my P380 I carry everyday for six months. I went to my backyard (I live in the country) and got one good shot ( buffalo Bore +p 90 grain JHP) and the second shot did not feed. Jump to the end--- My gun was filthy inside. The rails were dirty enough to stop the slide from chambering the second round. My P380 has never done this in over 1000 rounds. I cleaned and tested 3 times and everything worked fine. I thought my somewhat closed holster would keep it clean but I was wrong. Now going to clean every 3 weeks. Dan