hehehehehehehehehehe!! now there's a gun that brings back some memories, remember they had a sticker on the top of the cyclinder which said "High Power" .
I had a Airsporter S too for a while which I brough from a old company who advertised in airgun world called "The Mart At Lowerstoft", think they was about £85 back then. lovely gun but weighed a ton plus dropping pellets in the tap hole in the middle of the night was awkward .
do you remember another gun they said was a real power house but was a pea shooter called a "Diana G80"?