Ok, back from the range.
For the most part, the CZ performed very well. The gun went 200 rounds, without a hitch. My confidence is growing. Now its time to put it to the real test.
First some background on the COF. I call it the run and gun, where we put the student up against 6 armed assailents, in "gang" fashion. Basically, the student has found himself in a bad area, for whatever reasons, and is faced by 6 hoodlums who want to do him harm. At contact distance, the students draws and begins to defend himself, moving and shooting as he goes. Time and number of rounds varies, depending on how much ammo we feel like shooting...

Anyway, I loaded up 5 mags and started the drill. My intention was to run the full 50 rounds through the CZ. All was fine, until I hit the 4th mag. About half way through, I got a FTE. While moving, I cleared the malf and loaded the last mag. Three shots into that mag, I got another FTE. Retaining the mag, then clearing the gun, I reinserted the mag and finished the exercise.
The way I see it, the malfs could have been caused by one or both of two things. I can't rule out the possibility of limp wristing a shot, or two, although I ran the same drill, several times with the G23, without a single problem. The second thing is dirt. The range conditions are very dusty, and it is possible that that, plus the previous 200 rounds were just too much for the CZ's tight tollerances. The gun now has 1000 rounds through it, so should be loosening up. I'll clean it this week, as well as the mags, and give it another run next weekend.
All in all, the new extractor and spring seem to have cured the problem, but until I can get it 100%, under all conditions, I'll still be searching...
Now, just so everyone knows just how severe the run and gun is, we normally run 20 rounds (two mags, and all rounds must be shot), with a time limit of 20 seconds. Most students finish (with a reload) in about 16 seconds. My times are generally in the 11's, with my best being a 9.87. BTW, all targets must have 2 hits in a kill zone for the student to pass.
Come on down to the party, in two weeks, if you want to get in on some ot this kind of action...
