I've tried CCI 209's with BH209 in a TC Impact 50 caliber rifle with normal loads. I had several failure to fires. That was a fault of the primer, not the powder, which very clearly states to use CCI 209M primers. Thankfully that was testing I did before ever hunting. The last deer I shot using BH209 was using a Federal 209A and it was close to 0F that day.