I've read that Olympic makes these uppers for the AR platform.

After reading about the elk hunt with the 243WSSM, might be interested in one of these platforms. Does anyone know about the quality, problems, etc related to these platforms? The 300WSSM from what I read is between the 30-06 and the 300WM in balistics.

Would it be better to go with 6.8 SPC or 6.5 Grendel? I am intrigued by the 6x45 using the same case as the 223, but it never caught on. I also like the idea of a 7.62x39 upper, but I've heard it has feeding problems and I also have an SKS.

I just like the idea of the AR platform, and just changing uppers for various hunting conditions.

It might just be cheaper to buy An AR 308 platform.