I have a Cooper Timberline 280 AI coming anytime and need to get some dies and brass for it. I typically use Redding master hunter dies for all my other rifles but am wanting to try the type s bushing die on this rifle. I emailed Cooper for their recommendation on bushing size but no response. The bushing die is new to me so I'm unsure what size to get and those little bushing aren't cheap. How does a guy go about selecting the right size bushing? I'm aware of how Redding says to find your size but is there a common for 280ai? Can you measure factory loaded ammo and order a bushing based off that mesurment? About the brass has anybody used the hornady 280ai brass? Is it any good or should a guy just go with Nosler 280ai brass? Any advice is appreciated!