I have a TS in 40 S&W that I have had for about a year. I was experiencing some infrequent jams, but during a match over this past weekend, it became a jam-o-matic. It jammed four times during the first stage. There were a few other guys in my squad shooting CZ's, and they thought that my jam problems were related to the hollowpoints I was shooting. I exchanged my hollowpoints for flat points with a buddy I was shooting with. The jams were not as frequent, but were still present throughout the day. I didn't spend a whole lot of time looking at the jams during the match, but it appeared they were all nosedives.
I was running CZ Custom extensions with their springs and followers, as well as a CZ custom guide rod.
After doing a little research, I filed the bottom of the mag tubes to smooth the transition between the tubes and basepads. I then thoroughly cleaned the tubes, and wiped them down with a silicone cloth. I also removed the CZ Custom guide rod and replaced it with the original polymer guide rod.
I went to the range today to see if I could get it to jam up so I could try to see what the problem was. I did not clean the gun after the match, so it was still dirty. I ran 225 rounds of the same hollowpoints without a single jam. I ran every mag I own with not one problem. After the way the gun performed during the match, I was expecting it to jam up right away, but I don't think I could have made it jam if I tried...
Is the jam issue solved? Are the CZ mags that sensitive to not being clean, or getting a little but of crud in them? was the guide rod the culprit?