In rec.aviation.piloting Matt W. Barrow wrote:

"Anthony W" wrote in message
news:AGd8j.22555$Bg7.20727@trndny07...
Matt W. Barrow wrote:
"Jim Macklin" wrote in message
...
They tried, in one previous show, to duplicate the old cartoon shotgun
barrel blow up with the barrel unwinding. They tried to use modern
shotguns
which are made from solid tubular steel. Shotguns made before about
1920
were generally made by wrapping steel wire around a mandrel and using
the
old blacksmith welding with a hammer and anvil.
Those barrels would have flaws and weak spots.

More like 1880 than 1920.

"Damascus" barrels were not really produced after the 1880's or so, long
before the introduction of smokeless powder around 1900. Smokeless powder
would easily destroy such a barrel.

Actually it's not the barrels but the chamber that couldn't take the
higher pressure. I know one gunsmith that has somewhat permanently (red
loctite) installed 20 and 28 gage adapters in 12 gage Damascus steel
barrels. The adapter takes the load from firing the cartridge and the
rest of the barrels are strong enough for the rest. This makes for a
heavy low powered shotgun but it also makes a wall-hanger into a useful
piece.

After the load leaves the chamber, the barrel does...what (with the internal
pressure)?

While one could put in a chamber only sub-caliber adapter in a shotgun,
the pattern would be crap.

What is usually put in is called a "tube" and is a full length barrel.

--
Jim Pennino

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