Thanks for all the replies. I have received a new spring kit and installed the sig recoil spring and re cleaned the pistol. Im not sure the new spring made much difference, maybe just a tad. I think, as someone hinted to, that the round is not sliding behind the extractor properly. am currently searching for detailed instructions of taking the slide apart. More importantly the extractor. I've tried punching the pin out but can't get it to budge in either direction. I'll have to order a new one since i've been beating on it and will probably get the little punch tool from sig while i'm at it. If anyone knows anything else I will need let me know.
I can slide a round between the extractor by hand. Im not sure if I just need to clean the insides out or what the problem would be. with the new spring it's not doing it near as much but I can still get it to happen very easily by riding the slide closed. It's almost like the angle if the round feeding up the ramp is not agreeing with the space behind the extractor.
Thanks for the help!