I went to the range yesterday and fired 50 rounds without a single problem. Came home stripped the gun down to five components: slide, barrel, recoil spring, magazine, and the frame. Cleaned and oiled every parts and put them back together. Then I realized the trigger didn't reset every time I rack the slide back and forth to practice dry fire. Sometimes I had to rack the slide back and forth about four to five times in order to reset the trigger. Prior to yesterday I was able to reset the trigger each and everytime by pulling the slide back just 3/4 of an inch to do dry fire. Now it is a hit and miss thing sometimes the trigger reset with an inch pull back of the slide sometimes it required four to five racking of the slide all the way to the back in order to reset trigger. Also the pressure of the trigger pull seemed to vary. Do I have a broken gun?