Ok I'm thinking for coyote hunting and truck gun up to deer. I already have the gun built with two other barrels. It's a bighorn origin action, pure precision stock. I was thinking a 243ai with a 18-20" barrel to run my can on. What barrel contour would you go with to keep weight down but still be a good contour that can be threaded 5/8. Not against fluting to save a little weight any advice would be great. Currently have carbon fiber barrels on it.