I was finally able to get on the Brno web site today. A lot of people think that CZ and Brno are the same, but they are not. Unfortunately Brno does not make a magnum actioned rifle as far as I can tell. The biggest calibre they chamber is the 9.3x62 in their model 98 bolt action and 9.3x74 in the model 800 over/under. www.zbrojovkabrno.com