After reading your other posts I can only suggest two things. One the barrel could be bore scoped, and if you can,, have it checked between centers.
I had a 257 TCU barrel from Thompson and it did something similar.
It would steadily climb up and to the right as I continued to shoot. S&W refused to do anything about it. Barrel was slightly off center, comparing outside to inside dimensions, and there is no way it could be corrected.