I am try to build slash upgrade a .308 I have a Remington 700p with a rifle basics trigger and have just bought a mdt lss -xl chassis for it. the barrel is original 20 inch fluted Remington barrel. I am new to this so am wanting to know if I am on the right track will change barrel in the future but have to keep this one for now it still keeps groups under an inch. just looking for ideas and suggestions this will be a huntomg gun and some distance shooting but mostly hunting