I didn't have the time to set up my Chrony when I tested these, but by the looks of the sabot cups & shot groups - I'd be willing to bet there was quite a lot of velocity deviation between the shots.
I agree with you also in the fact that these bullets look rough - their surface is as potmarked as the moon's surface. After seeing them in person, I wasn't really expecting great things from them accuracy wise - and I wasn't disappointed.
