Case required Sources disagree
Hard-sided container specifically designed for the firearm, secured with a lock. Handguns may go in a locked hard-sided gun case placed inside an unlocked soft-sided or hard-sided piece of luggage.
The tariff allows a sporting firearm to be either disassembled OR packed in a suitable locked case. The website requires a hard-sided container specifically designed for the firearm, secured with a lock, with no disassembly alternative. Not resolved here.
Tariff (contract of carriage) provided that such firearms are disassembled or packed in a suitable locked case
flyporter.com Firearms must be unloaded and locked in a hard-sided container specifically designed for the firearm. The hard-sided container must be secured with a lock.
Follow the stricter of the two. Meeting the tougher requirement satisfies both, and the contract of carriage is what the airline can enforce at the counter.
Locks required Published
Firearm unloaded and the hard-sided case locked. Restricted firearms additionally need a cable lock or trigger lock. Non-restricted firearms such as hunting rifles and shotguns do NOT require a cable or trigger lock. Antique handguns and paintball guns do not require a secure locking device.
This is the clearest official statement found among Tier 1 carriers on the non-restricted trigger lock question that third-party summaries disagree about.
Porter Airlines’s wording
Restricted firearms must be secured with either a cable lock or trigger lock to prevent firing. Non-restricted firearms such as hunting rifles and shotguns do not require a cable or trigger lock.
Antique handguns or paintball guns do not require a secure locking device, although all other transportation provisions apply.
How much ammunition Published
Up to 5 kg (11 lb) per passenger, securely packed in a single container as checked baggage; allowances for multiple passengers cannot be combined into one package. Only shells and cartridges accepted.
Porter Airlines’s wording
You may transport up to 5 kg (11 lb) of ammunition per passenger provided it is securely packed in a single container as checked baggage. Allowances for more than one passenger cannot be combined into one package.
All ammunition must be declared at airport check-in. Only shells and cartridges are accepted. The following are strictly prohibited: Gunpowder (black powder) and gunpowder pellets; Primers or percussion caps; Loose ammunition or loose loaded magazines and/or clips
How to pack ammunition Published
Securely packed in the original hard-sided container or a container specifically designed to carry ammunition. May travel in the same piece of baggage as the firearm, but the two must be in separate hard-sided containers. Loose ammunition and loose loaded magazines or clips are strictly prohibited.
Porter Airlines’s wording
Ammunition must be securely packed either in the original hard-sided container or container specifically designed to carry ammunition. The firearm and ammunition may be transported in the same piece of baggage, however, must be packed in separate hard-sided containers.