check out icc-case.I bought some couple of months ago,made from alum and good price.I got one to hold my edge and it had inside dimensions of 60".Ask for factory seconds as I only paid 150 for mine.Bobby
I have a Starlight SC081454 that might work for you; Exterior dimensions are about 54" long; Foam has been cut for a 600 / 1000 yard light gun with large scope; Note: case does not have wheels although there are a couple of holes in the one end where wheels possibly existed before and could be added. One of the four latches sticks a bit.
$150 shipped conus.
I have a case that I bought at euro optic for my blaser tac 2. I don't know the dimensions but if you go on there site and look at it I am sure it will have the dimensions. I will take 150 for it. The tac two is a long weapon so I would guess it would work