It's far more likely to be improperly seated primers than anything else.
It ever misfired with factory ammo?
You using .44 Special brass or Mag cases loaded to Special velocities? Highly unlikely to be the cause of misfires though.
"...primers are regular hardness..." There's no such thing as a harder primer cup. Even with magnum primers they're all the same.
It ever misfired with factory ammo?
You using .44 Special brass or Mag cases loaded to Special velocities? Highly unlikely to be the cause of misfires though.
"...primers are regular hardness..." There's no such thing as a harder primer cup. Even with magnum primers they're all the same.