I'm going to have to respectfully disagree with backup9r. The OP reports light primer strikes and numerous failures to fire. Of the items mentioned by backup9r the only one of those that could cause light primer strikes is #3. While limp wristing, improper lubrication, and break in will all cause malfunctions, none of those will result in primers that are barely dented. It the right grip screws aren't tight the sear trigger bar can/will slip off the hammer before the hammer is fully retracted, and that will cause light primer strikes and ignition failures. Other than that, the next most likely cause would be ammo, but the OP has already tried two different types of ammo, both of which many R9 owners have had good reliability with. So, if tightening the right hand grip screws doesn't solve the problem then I'd suggest a return to the factory.