I was working up a load for my 308 the other day using Hornady 155 A-Max bullets, R&P Brass, CCI 200 promers and IMR 4064 powder. I had three each loaded with 43grains, 44, 45, 46 and 47 gains of powder. The IMR website maxes out at 47.5 but I decided to stop at 47.

Anyway, my first three shots, at 43 grains, had two almost on top of one another and the third off upper left about 3/8 to a 1/2 inch. The 44g group had spread out to a triangle about an inch, the 45g group had two in virtually the same hole and one lower right about 1/4" down (I think I pulled this one), the 46g spread out again and the 47g group had three touching one below the other in a small verticle string.

It seems the nodes are at 43, 45 and 47 grains, or every two grains. Does this seem right? Can there be that many nodes this evenly spread out? I'm going to now work up the load around the 45 grain mark, maybe 44.7, 44.9, 45.1 and see what that does.

For those of you shooting 4064 - do any of you use 155grain bullets and what are you finding in the way of powder volume? I also use BLc-2, and Varget, but am not interested in them - only in the 4064 comments, so please hold it to that only.

Thanks all.....