If you ONLY have that problem with one brand of ammunition, I wouldn't send it back to CZ. It sounds as though the ammo you were using is out of spec. (Compare the length of those rounds to some of the other "ball" ammo you have or can easily access.)
At different times over the years, some of the "compact" CZs had rifling that extended closer to the chamber than was appropriate. Tha area is called the freebore and if its too short, the rounds might engage the rifling before the gun is closed. THAT COULD be a problem with your gun. (I've not heard of that happening with RAMIs, but I don't pay a lot of attention to posts about that model.)