I’m having to stay at the house all weekend to take care of the wife from her surgery last week. Getting bored, I was going through my notes and found I had gotten a 3/4” 4 shot group at 100 yards using 64.0 grains of 180 gr. Accubonds, H4350 and 250 CCI’s. I had forgotten all about this load as I thought I was almost out of the 180 gr. Accubonds when working up this load, but bought some more early last spring.
I ran 64-65gr of that powder with 180gr Nosler partitions. Very accurate load. Also use CCI250's in my 300WSM's. I never shoot mine. The only one I have now is a Tikka with a wood stock. Very nice rifle and pretty good shooter. Your 178 ELDX load sounds like a good one. I've been seeing 180gr SST's quite a bit and bought a few boxes of them, along with some 175gr Sierra SMK bullets. They were on sale, so I bought 2 boxes. The 180gr SST's were $31.99/box. Hard to beat that price. Wondering how the 180gr SST compares to the 178 ELDX though. I also have some of those...