Do you reload or shoot factory? I have a 300 WM that shoots 2-3 inches with the 215 bergers I was reloading no matter the charge weight or seating depth I was pulling my hair out and about to toss is off a bridge and tried the 208 eldm and i shot a .7 5 round group earlier today. My buddy has a rem 700 7mm RM and it never shot under 3 inches for him with several factory loads. I beddded a rail and went through Forms process of mounting a known scope and I was getting the same results, so I bedded it in the factory stock and first 5 rd group was .6, same symptoms different reasons, once you start eliminating things one by one you’ll figure it out