I tried it out yesterday. It's a keeper!
Op-rod and shoulder are both still intact. Grouping at 100 meters was 2 MOA wide, 4 MOA tall. This with off-the shelf 150 gn hunting ammo, which is probably a bit too strong for regular use.
Since my PWF is about 1 MOA, this was very good for a first trial. Experience has shown that ammo adapted to an old service rifle usually produces a noticeable improvement. No time for pics at the moment, but I will make some soon.
If I could buy one, I would. But Garandspares have just about disappeared over here, so it may require an active weekend on the lathe.