Hi, James, and welcome to the brotherhood.
I’m going to ask a lot of questions and maybe one of them will turn on a light bulb. Light strikes or no strikes at all? Can you see a dimple from the firing pin on the primer of a case that didn’t fire?
Obviously, there are two places to look - the bolt and the trigger group. Is the bolt put together correctly? No binding or rubbing, firing pin channel clean and no oil in it, firing pin moves easily and spring pushes it back? Does the firing pin look okay, not bent, the tip isn’t damaged? Does it protrude through the bolt head when you push it forward? Is the bolt in battery?
Is the trigger group put back together correctly? No binding, nothing rubbing, hammer strut seated correctly on both ends, spring and clip in place? Sear, sear spring, and disconnect correct? Does the hammer release correctly with decent force when the trigger group isn’t in the rifle?
After rechecking your assembly, you can test whether you’re getting a good primer strike before making a trip to the range by putting a drop of candle wax on the “primer” of a snap cap. Pull the trigger and if you see a decent impression from the firing pin, it’s probably good to go…
The nice thing about the PCC is how easy it is to tear it down and put back together. Chris Nelson’s how-to videos are really good (except you don’t remove the takedown screws since they’re captured LOL).
Maybe other members can think of something I didn’t cover.