A little comment on the R 93 from Germany, where this gun comes from and is still common:

Many people (including myself) have sold their R 93s as there are quite a lot of cases where people have lost their right eye shooting it, mostly with magnum calibers. When this gun fails, the receiver goes straight into the shooters head. The reason appears to be that gas from a ruptured case can squeeze the collar open that holds the bolt head. Once that happens, there is nothing to hold the receiver back anymore. I would not recommend shooting big calibers in that gun. Statistically speaking, the chance for a failure is small, but if a failure happens you're toast 100 % - which cannot be said of traditional designs.

Over here, it is a common joke among many hunters that putting a .300 Whetherby barrel on a R 93 is an indication of an imminent suicide attempt. We have to take hunter education coursees here - even our teachers warned us about this gun. Blaser saw it coming, bought the Mauser brand and came out with the Mauser 03, basically the antithesis of their R 93 - also a multi-barrel system, but SAFE. This is now among the most popular guns here. I recommend to switch to that model if you want to shoot big bores. I did the same, it the most precise hunting gun I ever owned, and I do not have to worry about my eyesight.