I use CCI

My dad buys whatever is on sale which rarely is cci. I've found that on loads where I'm pushing the pressure envelope that CCI are better. I worked up a load once using Federal primers and thought that I had reached max pressure from reading the primers. Later used same load with CCI Primers and had no signs of high pressure???? Accuracy, Velocity, etc all the same only no deformation of the primer like was noticed with federals.