I have a couple of a older 7x50mm and a 4x32mm, both of which have been used on my 9.3x63mm with out missing a beat.
I think my 6x42mm Swaro was a touch brighter and handled "flare" a bit better, but for the money Meopta's are great scopes especially the new ones.
The downsides? They tend to be a little bit chunky and heavy and you have to watch the eye relief...Most these days have 80mm which is OK, but some models are quoted as only having 75mm...personally as someone who wears glasses, that would be too short.
Swaro and Zeiss or now producing scopes with 90mm eye relief and hopefully Meopta will follow..
Regards,
Peter