Large size TSA locks (.416 Rigby cartridge for scale) compared to a typical size TSA lock. Hopefully they deter thieves while providing easy access to TSA agents...
In the end nothing will deter a determined thief and, as previously stated, I agree with WAB that in such case the entire gun case is more likely to disappear than just the rifle, but this is just speculation...
"Shauri Ya Mungu" (It's God's Will), we are doing the best we can...............................