a lot of guns take around 500 rounds to "break in" CZ says "Next up, trigger. So many striker-fired pistols do many things right, falling short when it comes time to pull the trigger. The P-10’s trigger is designed to minimize creep and stacking, and after initial break-in averages a clean 4.5-5 lb pull and rebounds with a short, positive reset — meaning single shots can be meticulously placed while follow-ups are effortless." here is a good review thetruthaboutguns.com/2016/12/jeremy-s/gun-review-cz-p-10-c/

We have 2 and there was no break in period, they both shoot well and function 100% but we are competitive shooters and shoot well to begin with. No cons. They have a better trigger than the Glock and shoot as well as any service pistol. If you are a trained pistol shooter and things are going badly contact CZ USA.

Break in will be right around the 400 to 500 round mark.

a lot of guns take around 500 rounds to "break in" CZ says "Next up, trigger. So many striker-fired pistols do many things right, falling short when it comes time to pull the trigger. The P-10’s trigger is designed to minimize creep and stacking, and after initial break-in averages a clean 4.5-5 lb pull and rebounds with a short, positive reset — meaning single shots can be meticulously placed while follow-ups are effortless." here is a good review thetruthaboutguns.com/2016/12/jeremy-s/gun-review-cz-p-10-c/

Break in will be right around the 4 to 5 hundred round mark. Make sure your last hundred or so rounds are your proposed self defense rounds to get an idea of how these "Most Important" rounds will group. Try different ammo as well as shooting characteristics can vary lot to lot. Once you find what works, load up.