Hey im new and this is my first post, I have two questions about my walther ppk/s if anyone can help. 1. This may be a stupid question but today I used Independence .380 ball ammo in my ppks and a few times I had to pull the trigger twice to make a cartridge fire. I think its just the cheap ammo but since I recently gave my ppk a good cleaning im wondering if I may have damaged the firing pin, spring, etc. because ive never had this problem before and I THINK I read somewhere that it could happen. If anyone knows anything I appreciate your time. 2. This one is quick, how can I tell who manufactured my ppk/s, it doesnt say anywhere who made it other than "made in usa" and it doesnt have the longer beaver tail of the new smith and wesson versions so I think its interarms but im not sure because I bought it used and dont remember the year, and I lost the box, manual etc.