I remember Optima Leisure of Bolton advertising HW35s Export and Standard in AGW that had been seized by the Home Office when imported and tested. The H O labels were still attached when advertised for sale and I saw a few rifles when I called in. The owner said all these guns had flown out. I always did wonder if this was just a crafty sales ploy. Of the rifles tested and also the pellet testing series in AGW in the late 70's (?) showed that the 22" barreled Export, if anything, was lower in power than the 19" barrel standard. But like I always say - if your going to have one, have a long one.
ATB
Ian