Imr 8208 xbr

[natebonebusta]

River, I use H335 and found the load at 27.2 grains. I went up higher but found it was too hot in my rifle. If anyone wants to work up a load with the 123 SST, start lower.

Sort of along lines of what Zeneffect said, this caliber was probably the quirkiest I’ve loaded for. And reading primers might not tell us much.

I started my h335 loads at 27.5 up to 27.9 is where I settled with the best groups. That was with PPU brass. Loaded up some 27.2’s with starline to see if I get the same results.