I had similar issues on a Perazzi TMS with a leaf spring trigger group - light primer strikes at random
Used a hammer coil trigger group - ran perfectly
People suggested cleaning and looking at the firing pin but I knew the issue was in the trigger group as it only happened with the leaf spring trigger.
Tried a new leaf spring, made no difference.
It turned out to be that the cocking foot was not moving freely.
Punched out the original pin and made a pin out the end of a drill bit. The cocking foot moved freely.
Never had light strikes since.
I made a lengthy thread with a lot of pics on trapshooters
https://www.trapshooters.com/threads/perazzi-tm1-trigger-issue.909837/#post-8792473
Used a hammer coil trigger group - ran perfectly
People suggested cleaning and looking at the firing pin but I knew the issue was in the trigger group as it only happened with the leaf spring trigger.
Tried a new leaf spring, made no difference.
It turned out to be that the cocking foot was not moving freely.
Punched out the original pin and made a pin out the end of a drill bit. The cocking foot moved freely.
Never had light strikes since.
I made a lengthy thread with a lot of pics on trapshooters
https://www.trapshooters.com/threads/perazzi-tm1-trigger-issue.909837/#post-8792473