Has to be fire formed....it's a 6br with the shoulder angle changed and blown forward .010.
Its a heck of a rifle for anything and one of the most accurate rounds out there.
PS - there is a way you can form them without firing...Hornady makes a forming die. You put liquid in the case and the die has the shape of the case and seals...you hit a plunger of sort on top of the die and it will blow the shoulders out for you. I'm not a big fan because they are smoking accurate while you are fire forming and I have a fire forming barrel now.
Don't let your ears hear what your eyes didn't see, and don't let your mouth say what your heart doesn't feel