48.5 and 49.4 definitely show promise. Playing with your seating depth may tighten those groups up. I’m at that point with several rifles right now, my 30-06 actually being one of them. I have a load that is plenty adequate for deer hunting but am trying to tighten it up a little by adjusting seating depth.
On a side note, I wonder if changing the synthetic stock out to a Boyd’s laminate, would help with the recoil. For $100-$150 it might be worth a shot.
JTD