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Old October 3, 2008, 01:53 PM   #9
Harry Bonar
Senior Member
 
Join Date: December 5, 2004
Location: In the Vincent, Ohio general area.
Posts: 1,804
barrel

Sirs;
At Douglas barrels in Chasrleston WVa. in the rear of the shop is a "barrel strightening wheel." It is unused!
G. R. Douglas being a genius realized that barrel straightening wasn't a good way to do it - you simply bent segments to get one straight.
They have been normalizing barrels for years and barrels which show curvature are put in the scrap bin - I've seen it!
My personal opinion is that barrel straightening is a poor method of manufacture because as it heats up in firing the same strains are released!
Even Springfield Armory used to straighten barrels (old S.A.).

Steel ALWAYS releases internal strains rotationally - in a spiral. Stress relief in the furnas allows strains to be released and then you can sort barrels out accurately! The "Modern Gunsmith" by J.V. Howe explains this. This is why I think that if you "bend" your barrel, it may cause innacuracy due to strains being released.
Harry B.
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