Geezer, can you do the same test but at 25yds? Otherwise, we do not have like for like. I fear that 8yds is too short to gauge accuracy as the pellet has hardly travelled from the barrel.

W.Wombler, I wonder if it would be possible to attribute a date to BSA's switch to button rifling. If so, it might then be possible to obtain accuracy comparisons from collectors, here, although I dare say that the BSA factory carried out its own tests. I recall purchasing an Airsporter as a teenager and it produced a certificate stating that accuracy had been tested at the factory.

If you have access to the minutes of the Webley Board, we could perhaps answer an assortment of questions that have been raised in this thread.

Rgds
A