Hmm. I'm surprised the b.c. isn't better.
Yeah, you'd think just looking at it.
I wonder if those grooves decrease B.C. a bit.
Hammer bullets have a scalloped looking set of rings for what they call their Patented Drag Reduction (PDR).
Check out the 214 gr. Hammer Hunter.
https://hammerbullets.com/product-tag/308/page/2/ G7 is .322. Some companies are overly generous with their B.C. numbers. I guess the acid test would be to check them out.
I've gotten great accuracy with Hammer bullets. Not cheap, but a pretty neat design. They say you can push them faster due to low drag in the bore. I'm still working with mine, can't say for sure.
DF