I think I already posted this somewhere but:
35 Whelen std
59.5 RL15.5
250 Partition.
once fired Nosler/Norma brass (that much powder won't fit in virgin brass)
CCI mag primer
3.34 COAL (might be 3.35 but can't remember off top of my head).
2500 fps from a 20" barrel (shorter throat than SAAMI), ES of about 18 over 20 shots.
3/4 MOA.
Not quite as accurate and slightly slower than my RL-15 and MR-2000 loads, but good enough for what it's intended for.
You either have to settle the powder with a vibratory device or trickle it very slowly or expect a lot of powder crunch.
