I'm wanting to run 185 Berger BTTLR bullets in my new 30" CBI barrel FTR gun at 600/1000 yards. I haven't seen much load data with RL-17. Running QuickLoad I come up with 47.0 grs. of RL-17 with the 185BTTLR seated at 2.832 giving me a barrel time of 1.369ms which is right on the 4th NODE for a 30" barrel(1.368). Via QuickLoad, this gives me 2787 fps @57728 psi VS my Varget load of 44.3 grs. giving me, via QuickLoad, 2734 fps @ 60505 psi. and a barrel time of 1.372ms. I've never shot RL-17 before and wanting to know if there is a temperature sensitivity issue. I do live and shoot in south Florida and have tested both with success in 85-90 degree weather. Just trying to keep pressure down as not to beat the brass up so much. Thanks for any info regarding these loads.