Here is what I want to do with this rifle. This will be carry rifle for calling coyotes so I am keeping the weight down. The rifle is an accutriger 243 win with the standard sporter barrel on a Stockade thumbhole stock. The scope is a Weaver Tactical 4.5-14. I would like to build this into a long range hunter to be able to shoot 500+ yards. What would you guys do to this gun to make it as accurate as possible? I would consider rebarreling but it only has about 250 rounds through it. Any suggestions on what to do to improve the accuracy?