Looking at the ballistics of the 277 WLV vs the 6.8 SPC II, I still don't see an advantage to the 277 WLV. The ballistics are nearly identical. As I stated, I will not be shooting a lot of rounds per year with this particular caliber and don't wish to reload for whatever AR-15 hunting round I decide on so I will rely on factory ammo. Despite there being some factory ammo for the 277 WLV, there seems to be a much better selection and availability for the 6.8 and the 6.8 is slightly cheaper. The only advantages I see would be if you reload you can use .223 brass and that you could use the same bolt and magazines as a .223. But if I buy a complete upper for the 6.8 with charging handle and bolt carrier group and purchase a single 5 round 6.8 magazine to use for hunting purposes then I would be set for hunting with factory ammo. I'm not saying that the 277 WLV is inferior or somehow a bad selection but for my circumstances I don't see the 277 WLV having an advantage over the 6.8 mainly due to availability and selection of factory ammo. If the 277 WLV was ballistically superior to the 6.8 I might have a different opinion. If I was interested in reloading for this caliber I might also have a different opinion. But as it is, the 6.8 makes more sense to me for my usage than the 277 WLV.