I've generally understood or perhaps assumed, that longer bullets with a light density were more easily moved around in the wind due to much higher area for wind to push against, and lower energy density of course.
But I'm probably wrong.
It'll be interesting to see some real world user experience/data on them and how it affects fouling and so on. Probably means different load data as in the case of most other solid copper bullets.
Pretty surprising they're able to turn them that cheap and consider it a worthwhile business opportunity.