Hi Guys
OK I have had a reply from Webley. There are two main sections and the questions are aswered fully and honestly but, since part of the reply involves the website I need to hold off publishing the answer in full and a partial reply is not particularly usefull.

However the OFFICIAL power of ANY Tempest is approximately 3.3 ft/lb in .22 and 2.9 ft/lb in .177 no matter how pretty the presentation case.

Please bear in mind that this has taken roughly 4 hours from question to answer and shows a great deal more commitment to shooters than has been apparent up till now.

Target Bunny