Ogris is a well known gunmaker family from Ferlach in austria working there over generations.

for the 8x50R you probably only have 200 grains 8 mm S bullets available now. best are long cylindrical bullets like the Sellier & Bellot softpoint, boat tail bullets are hopeless. I have load 8x50R by using a 9,3x53R Finnisch die for the base and a 8x50R Lebel die for the mouth +shoulder and bullet seating.