When PPC was popular,guys around here would all go for Federal.CCI they said have a harder cup.But we are talking about mostly model 10 highly customized with a light double action(shorter arc)pull.
Most of my handguns have a lightly tuned action and all of them will light up CCI reliably.
A bad batch is also possible.I have had a problem with Winchester large rifle primers at a ratio of aprox 4%.That's huge for primers are normally reliable at way over 999/1000