Off to Chattanooga for a most sad occasion...great pal is getting married. Tried to talk her out of it...groom, too, but I digress.
Checked in at US Airways' counter and advised agent I was traveling with a gun in my checked luggage. "No problem," said the agent. Agent completed the orange card and asked me to place it INSIDE the gun case. (Last few times it was affixed to the outside of the gun case.)
FTR, I use a plastic case inside my hard-sided Samsonite suitcase. Gun was secured with a trigger lock; ammo in plastic Federal box inside the gun case; gun case secured with a TSA cable combo. Suitcase has combo TSA lock.
As noted before, in Pittsburgh you accompany your suitcase to the TSA counter/luggage checkpoint
after airline check-in. Very nice TSA agent took my suitcase and placed it on the counter and retrieved a set of TSA "keys." She thereupon opened the suitcase, removed the gun case, and swabbed it with liquid to detect any explosives. That took mere seconds; she then replaced the gun case in the suitcase and wished me a good day. Off I went...
BUT BEFORE I DEPARTED I ASKED IF TSA LOCKS WERE OKAY. She said absolutely. I note this because some on this Forum repeatedly aver I am wrong to use them.
(And I always use them whilst traveling. Traveling frequently, in fact.)
Flight is delayed so connection may be a problem. More upon arrival...
Be safe.