[TunnelRat]

When the failure to fire happens do you take a look at the primers of the cartridges that didn't fire? Wait the few seconds first in case of a hang fire, but what it sounds like is happening is you're getting light strikes. Does this happen with all types of ammo, or certain brands? Does this issue correlate to you using a new brand of ammo you haven't used before? Some ammunition uses relatively hard primers, but that said usually hammer fired pistols are a bit better with those than say striker fired pistols. Another question would be did you replace the hammer spring at any point?

And welcome to the forum!