Freddy,
Regarding the 284...you didn't mention bullet weight. I'd start off with load data for H4350 and work up from there. RL-17's moniker is misleading. It is slower than the 4350s and RL-19 is very close. Must be the burning curve that has it acting more like 4831.
Shot another dozen rounds of moly'ed 150 Nos Bt yesterday. 58 grs is the load and consistently is shooting well at 3175 fps. Have three sessions now with over 25 rnds fired, no signs of pressure or other anomolies. Still tweaking seating depth.
FYI the mag is 3.1" so the 150 is seated out compared to the normal 2.8" 284 length, load data would be different for the shorter OAL.
