Haifisch said:
Let me just say... JAM-O-MATIC.
That was after a 500 round break in.
What model of CZ, what caliber and what ammunition used?
The 9mm CZs in all models tend to be very forgiving on ammunition. If you were having jamming issues with a 9mm CZ it was either an ammo issue, you were using promags, or you got a bad gun that needed to be sent back to the factory.
The .40 cal ones based on the -75 frame, but not actual -75s can be finicky feeders due to the lack of significant barrel tilt. The -40P in particular can be a nasty bitty about getting rounds stuck halfway into the chamber. The P-07s in .40 are much improved because of the tiling barrel and I've never seen one go tits up on the range.
The -97Bs can be very picky on non-FMJ rounds because most to the JHPs don't taper fast enough and won't seat all the way into the chamber without being forced into the rifling. Also, there was a batch of bad Mec-Gar mags that had a habit of spitting the last round out the top of the magazine... haven't seen one of those in a while though.
Now, if you had a CZ-100B, particularly in .40, then yeah... you had a piece of junk.
BTW, CZ-75s sometimes also have the -85 style ambi-safety. The CZ-75 .40 S&W has it, so does a 2008 stainless CZ-75B that I have.