TexasCHLforum.com

First of all, NW is wrong, TSA rules state that the gun "container" must be secured with a lock which only the owner has the key or combination for, and that includes out TSA locks. I use "container" because a hard sided suitcase with the gun loose inside qualifies ( not as if anyone with any sense would actually do that, but I have seen it).

Second, although the airlines do set some rules as to weight limits for ammo, and numbers of guns, TSA is not obligated to enforce airline rules. When Southwest was pushing their eleven pound ammo weight limit during Dove season a few years back some screeners felt as though they should, at least as a "courtesy" report amouunts of ammo beyond SWA's limit to SWA. Others of us disabused them of this myth and now unless you actually tell SWA how much ammo you have, or they weigh it for themselves, it will most likely travel.