Re: Win748 in AR-10 .308win platform
Then use H4895 or IMR 4064, RL15 or Varget. They were designed for 308, I think.
btw, what's a DI weapon? Might be obvious but I don't know.
Direct Impingement?
If yes, these powders work, I think. But we used to use 748 in 308 but I don't remember the bullet, application or the rifle configuration. Check with Zediker: Loading for the M-14.