The cases I have looked at are barely wide enough for the elevation turret, but not deep enough to give any support to both the windage & parallax turrets.
I have both a single and double rifle case from SKB. I want excellent protection for the unexpected....like when my good friend put my gun in the back of his SUV, drove to the range, opened the back of the SUV and my case promptly crashed to the ground. the rifle was unharmed thanks to the build quality of the case. Moral of the story is that rough handling - even accidental drops - don't only happen at the airport. Hope this helps...