I use RL33 and it's fast but not temp stable.Hard too believe rl33 is at 98% for max?
What brass are you using?Improved case (90 grains capacity) 28" barrel, N570 powder, throated to seat long 3.550".
My hunting loads are at 3200fps and cases are on the 5th firing.
I started with PPU 264WM brass but am currently shooting necked down ADG 7 mag brass.What brass are you using?