I used most of the barrels mentioned way back then..The ONLY barrel I liked back then was Douglas, they had the modern equipment of the day, that none of the others had IMO...

Only Douglas has survived those days and its still a darn nice barrel, in fact still my second choice for hunting rifles but its a distant choice from Lothar Walthar that I use today almost exclusively...

Back then a 2 inch 3 shot group rifle was the exception, not the rule. Today its pretty easy to produce a 3 shot one inch gun, and a 5 shot one inch gun is relitively common.