Varget, 4064 as stated above with 168 sierra match bullets. I also have a hunting load using 150 gr Ballistic Tips using the old BL-C2. It proves just as accurate as the match bullet groups, and the point of impact is almost identical to the match bullets. I got lucky there, it's pretty handy having one zero for all my applications for that rifle.

There will probably be a slight difference in pressure. Partitions have a longer bearing surface than the equivalent weight Accubond as well as the difference in internal construction. Reduce by a couple of grains and work your way up and you should be OK.

The types of bullets which can really change the pressure are the Nosler E-tips as they are monolithic construction. Never used them because I'm not a fan of mono's. Also, some manufacturers used 100% copper jackets and some use gilding metal, which is typically 95% copper/5% tin. Nosler uses gilding metal for their bullets, which typically does not produce as much pressure as pure copper.

I loaded up some Varget and RL15 in Laupa cases under 165 grain NBTs today. I hope to be able to get out and test them soon.

Hope you find a load that works. My 308 doesn't like the NBT's as well as Hornady SST's or AMAX's. RL15 gives me sub 1/2" accuracy. I was only able to get about 5/8" accuracy with Varget.

YMMV

Dang, that's hard to believe. How did it like Accubonds?

Haven't tried them. Didn't do a lot of testing with the BT's when I got the gun. Tried a couple of powders and best accuracy was about 1". The Hornady's initially showed more promise so I just chose to work up loads with those bullets. The AMAX's shoot great and make a nice exit hole on a deer. I can buy a box of 100 for about the same price as 50 AB's. Don't see the need for a premium bonded bullet at 308 velocities. 44.2 grains of RL15 in Lapua brass with Federal 210M primers gives me 2670 fps.

I use IMR-4064 and have great success.