Have you checked to insure the bls are not loaded, a surprisingly large number are. Several years back I "Unloaded" one for a gentleman who had it for over 40 yrs since it was given to him by his grandfather. Even after oiling the bores to slicken them up a little & pulling wads with a worm, the shot was so oxidized it was mostly just a white powder, but after dumping the powder out of a smooth flat surface, just a touch of flame & it went "Pooof". If someone had capped it, & "IF" the spark could have got through, the gun would have fired.
