About a week ago I reported on a velocity/pressure test that I shot using 12 different powders in a 22" 308 Win. This is were I ended up with a variety of Barnes and Nosler bullets. All brass was Winchester (eventually reshot 9 times), Fed 210 primers, Oehler 43 for pressure and velocity (10 ft from muzzle). Upper pressure limit of about 59,000 psi set by shooting 7 different types of factory ammo. Hornady Superperformance was consistently around 58,500 psi. This is what works for my rifle, may not work in yours. A number of these loads exceed the 2.80" OAL of a 308 Win, but my rifle has a 3" magazine box. Accuracy testing is next up. Very impressed with the relatively new 2000 MR.
For what I hunt and the rifle that I use, I plan to stay with 168 gr. and smaller bullets, so I don't know. I do know that Alliant doesn't tend to show 2000 MR with the heavier bullets in the 308. They tend to go to AR Comp, RL 15 and RL 17. Doesn't mean, of course, that 2000 MR wouldn't work, but I have no experience with it and the heavier bullets.
For what I hunt and the rifle that I use, I plan to stay with 168 gr. and smaller bullets, so I don't know. I do know that Alliant doesn't tend to show 2000 MR with the heavier bullets in the 308. They tend to go to AR Comp, RL 15 and RL 17. Doesn't mean, of course, that 2000 MR wouldn't work, but I have no experience with it and the heavier bullets.
I've continued to work with the MR 2000 in my NULA 308. I've switched to Lapua brass and reduced the powder charge by 1 grain for both the TTSX 168 (49 grains) and the 165 Accubond (50.1 grains). Both are getting right at 2800 fps. My rifle seems to like the TTSX better - all the way to 400 yds. The TTSX are at .050 of the lands and the Accubonds are .030. In my rifle, at least for the TTSX, it much preferred the stoutest powder load possible.