Back to the range today to try the 47-grain loads.
Changed caps to Federal 206 to better see early pressure signs in the form of flattened primers, so repeated the 46-grain load.

46gr AR2206 = 2095 fps.
47gr AR2206 = 2133 fps.

I think I'll settle on the 47gr load for now, although primers are still well-rounded rather than flattened, and although 'noticeable' recoil is still quite manageable.
I see Pato is doing good work with 46gr AR2206H in his 9.5 MS down the track.

Anyway, time to bomb-up a bunch of rounds for accuracy testing next!

BTW ChrisPer, the guy in Darwin may have been Rob B_, he had a couple of MSs and a couple of Savage 99s among other things, as well as quite a few nice doubles. He now lives in North Queensland, but spends a lot of time travelling. Passes through Darwin once or twice a year as his daughter and her family still live here.
The other possibility with those rifles is Kurt M_, but he has an obvious Kraut accent. I don't!