I have one of the large Flambau cases for my Anschutz 1813 BR rifle which has a fairly large scope fitted. It dosn't have integral locks but has a facility for fitting padlocks. The only downside is that it is a very big case, and will only go in the car acrosss the rear passenger footwells. The one I have is actually listed as the double case but I don't think you would get two target rifles in there. It is the only case that I have seen that would take the 1813 completely set up with the butthook out at full extention and with either a large scope or the Anschutz diopters fitted. I am not sure who has them currently but they wwere very common a few years ago, I think several companies still list them.
Alan
"If you have a rifle, and you line up back-sight, fore-sight and Frenchman, pull the trigger, the world is suddenly a better place." Bernard Cornwell, in conversation with Mark Urban.