I've been seeing over the years all the videos and posts everywhere glorifying the D166 and loading them in Mosins. Out of curiosity I did some load research, bought a couple boxes and loaded a bunch for my 2 M39's and new M91 B Barrel. I got to say I am really unimpressed. I've had 10x better results using Sierra 180 grain bullets than these over priced and over hyped D166's. I've used multiple powders in making these loads. Anybody else have experience?