The thing I have been doonf lately is using old business cards and writing the data on the backside and using wide tape to tape them to the underside of the top of a plastic case.
All my .357s, 44 Special/Magnums/and 45 Colt's sport 4 5/8th inch bbls. The only one that doesn't is a very nice '58 44 Mag Flattop which will likely be sent down the road as I've never shot it.
I am Bhait. Fell in love with the 28 gauge last year and have been been acquiring them faster then I'd like to admit. The Ruger Red Label will be my first Ruger Shotgun, but second Ruger overall. I also have a Ruger Predator 350L. Great gun as well.