Hi Mike.
Its illegal to have bolt and rifle in same case, according to all airlines, however, not so many personnel by in-checking, knows to much about weapon transport. IE. KLM Airline, you must have approved special license to be able to bring rifle, min 14 days handling, including inspection of packing before checking in rifle, bolt, ammo....The worst airline in the world ? British Airways, must declare guns, minimum, one week before departure, and when rifle arrives London, all rifles are special scanned, and this handling is extremely ruff, even guns in TUFFPAC, can be broken ( we had a drilling broken ). The best airlines, like Lufthansa, South African Airlines etc, No problem With Anything ! They are just concern about your ammo, meaning that you have packed ammo in hard boxes, and not in ammo-belt, lose, in plastic-bag and such. If bad luck, rifle case gone, and can not be found, immediately Police will ask you for the bolt, and IF you had in same case, meaning you have transported "complete rifle" you are in BIG problem.
Mikehh375