Hello to All,
Just stripped down my friends Airsporter Mk6 in 0.22"
The rifle was making ca. 5.4 ft.lb with 14.3 gr. pellets, so I would suspect is a bit poorly
The piston head buffer washer had totally dis-integrated, and the piston was a right sod to remove. The 'insides' were drier than a dry thing
I have ordered up some spares (standard spring, alloy piston head & seal/washer kit).
When re-built, what would be the 'par' energy I should be looking for - around 9 to 10 ft.lb ?
I was very surprised to see that the piston & spring guide were made from sheet metal, rolled into shape !
Definitely not what I expected from BSA & one of their 'flagship' models !
Have fun & a good Bank Holiday
Best regards
Russ