He'd mentioned Varget, and I didn't get into powders, but you're right. The RL-15 is the powder currently used by Lake City to load the M118LR ammo. That removes any question about "will it work or not?"!
Thanks for all the help. I just found my dope sheet for the 168 Amax load( 42.5gr Varget and Fed 210 primers, new Lapua brass loaded by a friend). She was pushing 2667 fps. The firing point speed of sound was: 1142.72 fps. The bullet drops sub sonic at 1122 yards. At an altitude of 931 feet humidity was 78%, pressure was 29.53 and temp was 80 degrees. Looks like at 1000 yrds she was at 1240.7 fps with 574.1 ft/lbs dropping -387.16 inches, 37.0 MOA and 1.67 seconds on the time of flight.
Im gonna try some 175 SMKs and some R15 with CCI BR2 primers next and try a ladder test (which Im new to).
Thanks again everyone!
I have 24 in 5r that has been cryo dipped. (not sure when it was done if it would help but cold bore shot has almost no shift from normal and it shoots about 100 fps faster than my buddies 5r without). This load for 175's works in both 5r's sub .5 moa. lapua brass neck turned to .014 berger 175 otm or 175 smk. neck sized with a .333 bushing and seated to 2.810. 44 grains of rl 15 over a 210 gold match primer. The berger has a higher bc and chrono's from my ohler at 2720 with 9 for a sd. It stays supersonic to 1200 yards. The smk's will do 1000 but not much more. I have shot the hornady 178 match and its cheaper than the berger and very very close in g7 bc to the berger. It will do 1200 yards also. Steve
My gunsmith laughed at me when I asked him to do it, he called it b.s. after he saw how my gun shot he now recomends it. I just finnished a 5r milspec 300 win mag build with the same thing. Its supposed to align the metal molecules and take any stress out of the barrel from when it was made. I think it cost 50 bucks to have it done by one of the 2 big companies that do it. My 308 has 1000 rounds down the tube and it keeps getting faster. best of luck. I attached a pic of her in her new stock and duracoat.