hi all
i need my air rifles chrono,ed to be able to prove they are legal.
who needs to do this ? can anyone with a chrono do it , what proof of qualification do you need to write a certificate ?
i mean if i go to a dealer he will do it , i know , but it could be anyone operating the chrono just someone who works one day a week or whatever and who calibrates their chrony ?.
could it be done at the club i belong to or would that not carry the weight of a dealer ?

cheers
alan