Hi KenG. How many rounds total do you have on your CCP? Maybe the gun is still a little tight. I had issues with Perfecta on mine during first 200 or so rounds: stovepipes, jams, failure to cock striker. No issues with Winchester or Corbon. Oddly (or maybe not oddly), after I shot a box or two of +P ammo, the gun started running fine with Perfecta. My guess is it finally got loose enough to work well with the weaker Perfecta. I think these CCPs vary in tightness/smoothness when new and some work fine out of the box with most ammo, while others take a while to break in and won't run well with some ammo until they do.