Only Ruag (RWS) makes 30R cases. RWS never was cheap company for cases or ammo, but quality has a price which include quality itself plus brand name and reputation. You get what you pay for.
30R is not DG caliber, you can scope such a double, but do yourself a favor don't over burden it with too heavy a scope. A double is not a bolt action magazine rifle, weight transfer, vibrations, harmonics can change when scoped. On the very big caliber, mounts don't stand recoil most of time except if claw mount.
Zeiss Victory 1,1-4x24 Varipoint are a good choice with other Swaro, Schmidt or Kahles but not cheap too.
The new Victory HT with its fantastic glass will even be better.
As i already wrote better scope an O/U than and SxS. Generally their stocks better fit scope mounting, the way barrel vibrate and work when shot, too.
You can have very well made leather removable cheek pad to use with scoped double. They don't alter the rifle's esthetic and give you better head position when scoped.
More than any other rifles, doubles are all in compromise between, caliber, balance, weight, sights, stock shape and regulation. Some eat different types of bullets, some only one! No matter how you try and handload. No need to save on rifle or scope if you spend money in components trying to do them shoot...
Don't be fooled by some who say the contrary: that's the true. I'm in contact with most of the euro double rifle makers and they know what they speak of.
Cheap is never a good approach there, but no need to take mortage on your house to buy one.
Define your real needs, what you like, find some to take in hand and try if you can, then have the scope mounting job made by a really good gunsmith, go hunting and enjoy.
Dom
