I'm an old bird & mid-size game hunter and never considered an AR platform. I introduced two young men from my old Boy Scout troop to shooting about 4 years ago. Well, they went hog wild and have an artillery that would impress a SEAL Team! They introduced me to their AR's and I'm hooked. I could not believe the .223 ballistics--these kids hit steel at 640 yds !
Anyway, I want a little more hunting power but not a large cartridge and my research has led me to the 6.8 SPC. These forums are an excellent resource--Thanks to all of you for sharing your knowledge and experience.