For the last couple of years I have used cfe 223 extensively, and have been very pleased. However, a couple of observations: like others, it seems to have a sharp pressure curve upward when pressures rise abruptly. Surprisingly, this is lower than what is posted frequently as a "max" amount, even on generally conservative sites, such as Hodgdon's itself. I am getting phenomenal accuracy out of a pre 64 Winchester 308 with a stock barrel from 1953: easily less than 0.5 MOA for 3 shot groups at 100 yds., with a 150 gr. Nosler partition, using 50.5 gr., 2.800, Fed 210 match primer. I have gotten better groups with the 150's than the 165 gr Partitions. Have had very good luck also with the Berger 168 classic hunter using 46.7gr giving best results, but still not as accurate as the 150gr Partitions surprisingly.
