Quote:
What materials were used in the ultra light Bretton O/U guns Roger Barlow used to write about?

I recall him writing about that gun & both the frame & bblas were made of what he referred to as Duraluminum. This is a "Trade Name" for some aluminum alloys but forgert exactly which ones. Chuck may know, I don't have any reference books on the alloys at home & no longer frequent the machine shop.
The reason the 12ga wounds the most is because it is "Shot AT" so many, many times more birds than other gauges. What would be interesting is to see some real figures, though would likely be difficult to obtain, as to percentage of wounds to kills of the different gauges, all used by shooters of similar abilities.

Miller/TN
I Didn't Say Everything I Said, Yogi Berra