Ailing Airsporter

[Hsing-ee]

Thanks fellas,in an old post someone suggested using BSA's own Storm pellets, as they raised the power of his old tap loader from 7 to 10ft/lbs.

Presumably a snug fit in the tap and bore .

There is no way that a crap pellet should lose you more than three fpe. The Airsporter S should do well over 11 fpe in .177, not 7.5. Just look at the size of the compression cylinder and the spring, my HW30 does 7.5 fpe in .177 and that is a midget compared to the sporter. The bore is the same in .177 as now, it is only the .22s that are slightly over, and even then it is a matter of accuracy rather than power that suffers. Something is seriously out of kilter with it. Try using RWS Superfield and have another look at the piston washer.