Thanks Lakey and no problem - I've been busy too! Nice example you have there.
I think Gingernut was right in that a thread like this urges us to shoot these classics, as I resprung and re-breech washered one of mine last night. A BSA Light Pattern spring will result in .177 velocities between 500 and 600 FPS, which is ample and does not place too much strain on the internals.
Kind regards,
John