I traded for an M-1910 Mannlicher Schoenauer in 9.5x57 MS caliber a while back. I also got a bunch of Mannlicher Collectors newsletters with it. They had a bunch of loading data for it with 3031, 4895, 4064 and Norma 201 powder. I have experience with the first three powders and ended up with 4064 as the best for my gun. It is accurate (especially with the peep sight I have now), but the velocities are a little bit on the low side.

I just ran across a guy who has some Norma 201 powder (no one else in the area has any). Does anyone have any experience with this powder in anything similar to the 9.5x57 MS? Is is worth trying?

Here are some pictures of my M-1910:

http://gallery.sixshootercommunity.com/displayimage.php?album=lastup&cat=10063&pos=0

http://gallery.sixshootercommunity.com/displayimage.php?album=lastup&cat=10063&pos=1

http://gallery.sixshootercommunity.com/displayimage.php?album=lastup&cat=10063&pos=2