OK cool. Most 7.62x39mm brass is large rifle primer, except Remington, in my limited experience. I ditched the Remington factory brass and stayed strictly with large primer stuff.
Accurate Arms 1680 has been touted as the best powder for 7.62x39mm. All I know is it has worked better for me than anything else I tried. Powders suitable for .223 are not a good fit for 7.62x39mm. Best factory bullets I've used are the Hornaday 123 gr spire point and the Hornaday 123 gr SST. Cast, I have used both Lees, the 160 gr and 155gr, and they worked fine, but the NOE 129 .314 mold produces a bullet that works great, powder coated.
Remember the bore is .310, so .310 and .311 is what you are looking for. .308 can work, but not nearly as well.
I am not at home so I don't have my load data right at hand. Hope that helps.