TH44,

Sorry you had problems. Yes I used Fed 215 magnum primers. I have had problems in the past with 4198 not igniting. You have to be sure powder in held tight against the primer. I didn't have any trouble with these loads I told you about. I'm always a little nervous when you have a big diameter case and a very small amount of powder. I don't think I would use any powder that is faster than 4198 in this cartridge.

Sam