My buddy came up to get his Lee 5 stage press that I had to figure out for him. He showd me 8 lb jug of Alliant 2000 MR powder. He was sold it saying he could use it in .223 and .308. I looked through all my cook books and can't find it any where listed. He brought up some 308 brass and 223 brass with bullets. In 308 he has 147 grn fmj and 185grn. 55 grn for .223. I use IMR 4064 in my single stage presses. Can any one educate me on Alliant 2000 MR powder?