How could or should the 6.5 mm Grendel be improved?

[Trooper]

Would the improvements in performance over the Grendel really be worth the additional weight?

I think our best bet here is to get a LMG built to accommodate the Grendel and see what kind of attention that attracts.

Then if we can get a steel core FMJ bullet developed, so we can prove our assumptions.

Are you comparing weight to the 5.56 NATO or to the 7.62 NATO?