Addendum: Out of curiosity I checked eBay for BRNO scope rings and I think the same Czech guy is selling there under the name "gunspart". Only mounts listed for BRNO#1&2 were 30mm size, but it wouldn't hurt to contact him with your needs. The rings he has listed cost $85, and that's around what I think I paid for my 1" ones. A bit salty maybe but they're good quality.
Note also these rifles need rings that are bit higher than what is intuitive in order for the bolt handle to clear without modifications to it.
