A couple weeks ago I picked up a new PT-111 Millennium Pro. Love the way the gun feels in my hand, and WAS liking how it shot. So far, the recoil spring has popped out the front of the slide TWICE in the three times I have taken it to the range. I have put exactly 246 rounds through it so far. The first time it happened, I was using cheap Winchester White Box 115 grain JHP ammo. I had shot 100 round nose WWB 115 grain with no problems prior to loading the JHP. I took the gun home and managed to work the spring out. I figured I would give it another chance and see how it went next time. Second time I took it to the range I shot 50 rounds of round nose WWB with no problems. Tonight I was almost through my box of 100 WWB round nose when the recoil spring popped out the front again! I have linked a couple of pictures to better explain the problem. I am somewhat of a newbie to shooting, but more experienced folks I've talked with have never heard of this happening. I figure the darn thing will have to go back for warranty work, so I'm pretty disappointed now. Hopefully someone wiser than me can offer some advice!
Here is a picture from the side:
Here is a picture showing the end of the slide: