Have been trying some test loads with a couple new powders that don't have either powder maker or bullet maker suggested loads. Thought I would share them. My 9.3x64 is built on a 98 mauser and I cannot get anywhere near the max loads listed in the Nosler manual (compressed way too much for me). Using the 286 gr Partion and the 293 Tug bullets I found that 67 grs of 4320 was max and gave very good groups. IMR 4007 is listed as between 4320 & 4350 and RL17 is supposed to be slightly faster than 4350. Since both RL17 & 4007 are slower than 4320 I started with the max load of 4320 as the start load for both powders ( 67 grs). I worked up to a max of 72 grs with both RL17 & 4007 using 286 gr partions and 293 gr TUGs. The 72 gr load of 4007 is giving 3 shot groups under 1in @ 100 yds with the partion & the TUG bullet. RWS cases & WLR primers were used with all loads. These loads were safe in my rifle,no guarantees in yours. Max loads were slightly compressed. Hope this helps.

Snowman, you know this site has loads for the 9.3 x 64 in the reloading pages.

snowman, I know I would tell you my chrony reports and shot placements with RL17 and my 64 Brenneke with 250TSX but very busy in the past wk. on this D6. will do something soon.