There was 2 or 3 threads regarding this, one of them with photographic proof, but they've disappeared off into the eather :-/
Basicaly what Livonia said is correct, theres a hell of alot more physics to it than that, but in short the tightest you should ever go is 6.03 and this is with desent high quality ammo
Basicaly what Livonia said is correct, theres a hell of alot more physics to it than that, but in short the tightest you should ever go is 6.03 and this is with desent high quality ammo