I have a pre ban AR15 2012 Loki weapon systems AR. 16” light profile barrel with Magpul more furniture. Any hoot I am thinking of building another upper with all the BS going on in Annapolis. I feel like I can’t even transport it to the range or anywhere. When someone spot this “Assault rifle” getting ridiculous. Any way I have Four AR 15’s. Currently this one and the two others in 223 Wylde. One is a 20” BHW Bull and one is a 18” BHW Bull. The other is a 20” BHW 264 LBC National Match profile. While both the 223’s are very accurate the 264 LBC is extremely accurate sub moa with factory Hornady 123 SST ammo. Any way if I do this I am debating on building either another 264 LBC or. 6.5 Grendel with 22” barrel as a coyote rifle. Thinking since I have 264 LBC I should stick with it.as I will be able to load AMMO that will most probably shoot in both rifle. If I go with 6.5 Grendel it will most probably be different enough to cause pressure issues between different chambering and loading. With that being said if I have to load differently I might as well go to another caliber ie. 6 mm AR,/243 LBC. This would make another great caliber for the AR15 platform. So for me I am thinking if I stick with the 6.5 I’ll just do another 264 LBC BHW barrel. If not the 6mm AR/243 LBC. Just tossing out into the either.