stagpanther
New member
I have 4166 but don't have the specific 108 gr Berger bullet you ask about. I have built 2 AR's based on the 6mm creedmoor; one an Odin (8) barrel and the other a McGowen (7). Both shoot very well. In addition, I've used both large and small primered cases, but don't have enough experience to conclusively draw an opinion on which may be better--other than relative case strength at the head. I do like the 105 to 108 gr eld-x bullets; with them I found some really good loads using PP 4000 MR, my 108 loads showed an excellent "sweet spot node" between 42.7 and 42.9 grs of 4000 MR. Obviously YRMV, what works for me may not for you.Since the equipment to run pressure tests on my load development is out of the question. I will have to run ladder tests... Read pressure signs and invest in some radar for best choice for the 6mm Creedmoor with 108gr. Well that is how I found 4166 and my new powder purchasing seams to be growing. If any one has found a pet load using a 108gr. bullet with a 1in8 twist I would be interested in hearing your input. Also I'm open for other comments.
I do have 105 hunting vlds and got very good results with 41.9 grs of IMR 4350. My faster McGowen barrel I've tried 110 MK's and even Nosler's 115 RDF's; ramshot magnum gave me good results with these bigger bullets.
Get a labradar--you won't be disappointed. Invest in quick load as well, especially if you like those peak pressure vs timing charts.
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