a gunsmith to cut down and recrown a Webley Stingray barrel? Any idea of price? Would certainly make more sense to have it done than buy a brand new shiny one from Webley, as the rest of the rifle is all scratched up anyway. Despite my rantings about Webley's price, I am willing to pay to have a good job done

What is the shortest length it could be made without adversly affecting accuracy or power?

Cheers