I know a BUNCH of guys who swear by Pac Nor 3-groove tubes, and can assure you they run 'em hard. None have ever been known to try and conserve powder. Never heard a single bad word about them. The general concensus is "just as accurate, cleans easier, longer barrel life........"
I know Dan Lilja started making 3-groovers after Pac-Nor and won some competitions with them.......
