I assume you're meaning hunting game at reasonable ranges and target shooting at up to 1000 yds. Then I could possibily offer you some advice. You must understand that much of what I tell you comes from material I have read and not from personal experence. To shoot with any degree of accuracy at 1000 yds with a 308 you have to load a heavy bullet very hot. I'm talking about a sierra 175 gr bt match as minimum. The reason being that a lighter bullet will drop below supersonic speed before reaching the target. And the 175 gr has to leave your barrel very fast in order to do so.All I've read on this subject indicates that a bullet that transgresses from supersonic to subsonic in flight loses its stability and therfore it's accuracy potential . Perhapes some other readers can add more info. to help you. But my thinking is, if you are serious about shooting at 1000 yds go to a 300 mag or 338 mag . Just be sure their are good match bullets available in the calibre you choose. Another thing I should mention about the 308 is the barrel length should be at least 26 ins. and 28-30 ins would be better to help achieve the needed M.V.