[bsa skorpian t10 air problem]

hi having problems with my skorpian t10 will charge up with air and hold it and fire rounds for same day, but loses all its air overnight. if it needs a service can anyone recomend a reasonable gunsmith in chesterfield or derbyshire,many thanks

[BSA ss scorpion .177]

hi, can you tell me if this is a multi shot or single, thank you