I had one quite a while ago. I was running 37.0 grains of RL15 with the 120 nbt's. It was not a top end load @ 2800 fps in a 24" barrel. I agree with you and would personally not be worried about starting just under proven charge weights for varget(or RL15 in my reference), with leverevolution powder.
This one is shooting great with Varget @ 38 grains. Case is full, but not compressed. No pressure signs. SD/ES next to nothing, but I was hoping for a little more velocity than the 2810 I'm seeing out of this 23" barrel.
I'd be doing the same as you. RL15 might also be worth a look. I know that I could have gone higher than 37.0 grains in mine, but my F/P fitment was poor. Overall, it was a short lived project that I'd like to do-over. Hmm...
Hey guys, got heated out of bear woods. 88 degrees and thinking I'll go back later. 41.2 IMR4451 with 140s is as high as I'd go. 39.8 ish for the 147 eld with H4350 is a winner as well. Never shot the smaller bullets in there though that 123 Scenar would be a good one. Kind of wondering if that IMR4451 would be worth a look with that 123?
Our 3 have .170 fb as well, so obviously work up to those charges.