Maybe I didn't look close enough. On the one round I pulled out of the box I couldn't feel the serrations with a paper clip like I could on the older round; however with a flash light I could see them. I pulled a few more rounds and I could feel them as well. I guess there's a little variation from round to round. Mostly in the depth of the hole.
I guess I'm not so sure now, this could still be the 8m3. I'll pull a bullet when I can. In the images new is on the left, old is on the right.
Edit: I bought these from ammoman.com, the new shipment arrived today, the older ones also came fr