To be sure Ross has never advocated 5 shot loads in six shot guns. He and Hamilton performed this test for their own edification and to determine the margin of safety in loading the six shot Ruger guns to 32,000 cup. Those loads were found to have a 100% safety margin in that it would take 60,000 cup, give or take, to blow a large frame 6 shot Ruger Bisley/Blackhawk.
