Just before the quarantine and the subsequent short supply of parts, I was trying to build up some primers and bullets. Cci were preferred, for storage reasons. All I could find were federal in good supply, so I bought several thousand. I have been super happy with them and due to the scarcity have used my left over stores of CCI to trade for bullets. I've not found much difference in them. I feel that Cci seem to have a tougher build, and federal a little softer. Not sure what that means in the overall scheme of things, but the federal take less pressure to get them totally seated in the pockets. One of my rifles is light striking and prefers the federal as well. You won't be disappointed. They are both consistent and both go boom.