Thanks for the reply. I didn't know that about them being the same.
I'm waiting on bullets to become available to load but picked up the cheapest rounds i could find, a box of managed recoil 150 grain Remington. I figured I'd use them for break in and have brass at the same time...it doesn't like them!! It shot better with brake closed. 2 1/2 inches vs. 3. However, I'm not drawing a conclusion on the guns accuracy with a magnum round that is 200fps slower than their 308 load.