Edit: My apologies if I've posted any of these before - I can't figure out how to search for my own posts!
Not claiming any sort of "average performance" for these, but I've trawled through my photo history and found a couple of nice ones...
Century Range, 100 yds, at the Rifle Meeting 2016 - 10 shot groups, prone, sling, aperture sights, could have been Centre-X or R50 at that point. Shot with an AHG F27A Challenger. I got this one back and framed the bottom diagram
Home range, unknown league card, July 2014. 50m, 5 shot group, Centre-X, PSAS again. Shot with an Anschutz 1913 on the 2213 alu stock.
Home range, would have been the Yorkshire Any Sights league, April 2014. 100yds, 10 shot group, Centre-X, prone, sling, honking great Sightron SIII scope... damn that thing was heavy! The AHG F27A again.
Appleton RC's 50m range, May 2013. Probably Centre-X again (I was on it for years), PSAS, Anschutz 1913, but it's only a 2 shot group... I'd shot the 100yds part of the comp in the morning, and these were the first two sighting shots in the afternoon after rolling over the foresight to set it at 50m. I kept this one so that next time I saw Barry Nesom (who made the foresight), I could wind him up by claiming that there was a WHOLE MILLIMETER of difference between the zeroes