Speaking of temperature sensitive powders

[Lemonaid]

I reloaded a few rounds with RL 17. I can get 27.7 grains to fit in my PPC cases without compression using a Sierra 107 MK seated to 2.280" (.010 jump). 24 inch barrel, Fed 205 primers.
Results from today's range trip.
26.5=2476
26.7=2509
26.9=2509
27.1=2546
27.3=2572
27.5=2583
27.7=2648
Very minor cratering on primers at upper loads nothing troubling. Accuracy was average, all seven rounds in 1.5 inches at 100 yards.
So it's viable but not optimal. For my gun it's giving about the same velocity at the same charge weight as CFE 223 but I can't fit as much in the case.