Looking to take this Axis 308 and build something similar to the Savage Mark II Minimalist for a hog/deer gun. Looking at the Boyd's Spike Camp stock and trying to narrow down my options for a barrel. I'm wanting something around 18" and possibly threaded. Most cost effective would likely be to just have my barrel cut down. If I decided to go the route of a custom barrel, what twist rate would be best for bullets in the 165gr-180gr range? There's also the option of purchasing a new barrel. As for Optics, I'm leaning towards the Vortex Viper HS 2.5-10x44mm. Kind of leaning toward the Scout type of rifle, but without the long eye relief, forward mounted scope. Any advice or opinions are welcome.