i think i still got a pic of the 223 groups, ill look around later., didnt take any of the 204 today, cameraless.
The 223 shoots anything pretty good but the magic load is 69 SMK in front of 23 gr H335. meticulous brass prep as well. Rem cases. the key i think is the length, just off the rifling (2.282). The 204 shoots H335 very well, not so much for the Re10, Varget was OK (under an 1MAO). 26.5 gr was the best group, all 5 touching. The 40 grain Vmax has to seated deeper, but with that charge it shot well. Im just glad to have a powder i can use for both. 204 was WIn cases. Both CCI 400s, all were outside neck turned and weighed.