I've let my FAC lapse, but I've still got a smoothbore cert' and a black powder ticket, I used to work on reproduction noise makers for those re-enactment nutjobs. But to be fair to your earlier comment, the majority of what I've got these days are .22 air rifles. 3 Weirauch's (HW97, 95 and 35 in .177) a delightful little BSA lightning XL, and one of those awful plastic stocked Gamo things from your neck of the woods. The HW97 runs at 26 ft lbs. I told the local firearms officer about it when the FAC lapsed, he said 'don't worry about it'.