Because some kind of special designed LR- bullets are missing yet?! Quite a strong statement. For me the performance of both the 8x68S and 8 mm RM is more than sufficient for hunting and shooting up to 1000yards. BTW, even if I could I wouldn’t hunt further out than 300m +, but that’s only my personal taste and opinion.
The 8x68S is parent case for many other good and interesting rounds and currently for the 375 Hoelderlin. Not bad!