Apparently there been lots big game slayed with the "marginal" 9,3x62 and 9,3x74R

What a pity the animals didn't know this. Well, as stated it's a numbers game and the 9,3x64 will never be popular. In my view 9,3x64 is a perfect solution to a non-existing problem with other 9,3 and 375's on the market.

Actually, Brenneke also makes ammo in 9,3x64 so that make them two

But Brenneke is a very small player on the ammunitions market.