I'd personally run everything SRP.
Longer primer pocket life is a bonus when using spendy brass.
Makes for easier change over on my 550's as well.
Would be easy to source some factory Hornady brass for those cold hunting trips.
I'm loading these for a friend who's just getting into hunting. I'm getting the brass and loading it as a gift, and he doesn't shoot enough to wear out a hundred Creedmoor cases in a hurry.
He's going to use it to hunt everything including late season elk, and I don't want to be responsible for any cold weather problems, he hasn't killed his first one yet.
