I have a 6x47 lapua that is built on a 700 Remington action. And starting about midway through last winter I started getting misfires. And they are starting to become more frequent. I have pulled my bolt apart and cleaned the firing pin and inside the bolt body to make sure that nothing is gummy. Everything is cleaned and a light coating of oil. My primers are seated properly. The only thing I can think of would be a new firing pin can anybody give me some ideas? The primers I use in the rifle are cci450 small rifle.