I don't know about you guys but today I was out sighting in my gun with the new scope on it and was using my winchester 777 primers and had three miss fires. I quit using them and switched to some cci primers my buddy had and no more miss fires. After trying a couple with the cci's I went back and tried another winchester 777 and another miss fire these things are junk anyone else ever have this problem. Just incase you wanted to know 100 gr 777 and 245 powerbelt and wichester 777 primers.