Thread: .303 rifle recoil, sore shoulder

I also have bursitis in my shoulder, and its my opinion that most of your discomfort is coming from that. Perhaps it is causing you to hold the rifle in a way which you normally wouldn't, but if I was you I would work on the healing process before looking for issues with the rifle or your shooting technique.
I assume you're already going down this path but if not, inquire about a cortisone injection, which has reduced the inflammation for me, and ongoing physio visits for acupuncture and targeted mobility exercises are making gradual improvements.