Welcome TomW, This is a TC product isn't it? You could try different 209 primers, but I think I would give TC a call and let them know of your problem. TC has always been a great service company to deal with. Sounds like you're not getting enough striker contact pressure or striker alignment issue. Quick test would be to change primer manufacture and see if this solves the problem. Anyone else have some advice for Tom here? Good luck on solving the problem.