
Remington has their 2013 catalogue online now. There's (3) new SPS Tactical 16.5" models available chambered in .223 Rem, .300 AAC Blackout, and ,308 Winchester. The twist rates for the Blackout are listed incorrectly. They are 1:7" and 1:10" respectively.
I knew about the Blackout but the other cartridges are a complete surprise to me. A 16.5" .308 Win. sounds like a boomer for sure by factory rifle standards. I think the .223 Rem. would make an awesome medium range varmint rifle.