I agree nothing like having faith in your equipment. I was a little apprehensive about the 223, I know many hunters kill game with that caliber, just didn't have first hand experience. I trusted the nosler partition to a point, the trust is based on their reputation for tough construction. I had complete confidence in the accuracy of the rifle and it's Leupold optic. I really like the 280 rem on paper it's a great round. I've been on a quest to be able to shoot larger rounds without pain. It's a slow process. One of the steps in my quest is 280 rem.