I was going to try this combination with Retumbo, but I was so impressed with the results (range & on game)of 140gr Accubonds with my 270WSM's (andf my 300WM with 180gr AB's) that I traded all of my .277 cal 140gr TSX bullets (3 pkgs & 2 pkg of 180gr for 300WM) I had to reload for 140gr AB's for the WSM's and 180's AB's for the 300WM.
I'll look in my records for what I was going to try and let you know.
With the 140gr AB's from the 270WSM getting complete pass thrus at various distances on elk/ moose, deer. Only recovered 1 bullet from the 270WSM on a cow elk my wife shot last season and it retained 120gr (85.7% of original), perfect expansion. LOngest with the 270WSM was@ 325m double lung my wife did in 2005 or 06 on a bull moose. She shot twice as I did not want the bull to make it into the timber. First shot was a kill shot, but the bull ran 20m and stopped so she hit him again.