There are still problems with lead free primers. One problem is shelf life is much shorter than standard primers using lead styphnate. Second problem is the pressure generated by lead free primers. I witnessed a dozen brand new Glock 19s breach faces damaged by lead free primers. The manufacture of the lead free ammo replaced all 12 of the Glock 19s. When I call Glock about this problem Glock informed me "Green Ammo" lead free ammo was not to be shot in their guns. This incident occurred about 4 years ago.
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