I wonder about something. We ask bullet makers to design/build us "6.8 specific" bullets, because the .270 bullets are too long for our AR platform use, or the 6.8 round's capacity just doesn't provide enough speed to allow the .270 bullet to perform as designed. So, based upon specs obtained from SAAMI, bullet makers design/build us bullets to perform at 6.8 velocities. On the flip side, we're using guns which are non-typical (in capabilities) to the 6.8. We're not shooting SAAMI spec'd chambers/rifling. And, we're squeezing (consistently) more velocity from the 6.8. Some are not seeing good results from their reloading efforts. Enter the .277 Wolvie. Since it uses a 5.56 casing, it will inherently be a "little brother" due to capacity/speed development. However, with good specs, the performance is there... probably pushing a 6.8 pill at 6.8 SAAMI speeds. Result? Fine bullet performance.
My point? If we see less than favorable bullet performance, before blaming the bullet, maybe try loads at a lower velocity accuracy node and see if we see an improvement in bullet performance.
Good whackage there, making pig-bombs.