If you look at the ammo available everything can be put in to context with the Swiss hunting laws - light for caliber lead free bullets for local game where something bigger than 10.3mm is required but a .416/.404/.458 is overkill, and a 25,9g /399grain bonded lead at 2330fps for the rare trip to Africa. The ideal one rifle for the well to do Swiss hunter.

Blaser has made barrels in both 7.5x55 and 10.3x60R almost exclusively for the Swiss market for as long as I’ve been looking at their catalogues, the market has to be large enough to make it worthwhile.

As for the belt, given it will be fed from a plastic semi spiral Blaser R8 mag, and the cartridges probably won’t get reloaded, who is going to care? The R93 & R8 will also feed rebated rim cartridges without hiccups under the time pressure of BGRC shoots whilst CZ550 owners are often busy clearing jams and failing to get their shots of in time!