How could or should the 6.5 mm Grendel be improved?

[cory]

I know this is old but...
Build a new lower with a wider mag well. Design new mags to fit that lower and allow the cases to stack properly with the side walls being strong enough to prevent bowing. Design and manufacture stronger bolts and extension. A few stronger designs already exist. Design and manufacture green bullets in a weight range that will give high BCs and still not so heavy to be driven at a decent velocity.
Goes without saying that's just my opinion.

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.