barrel distortion

That clear spirit is what goes into every barrel of The Macallan.
How Much Do Whisky Casks Really Affect Taste?||December 10, 2014|DAILY BEAST
And for Scotch in particular—which can spend decades in the barrel—wood is critical to the finished spirit.
How Much Do Whisky Casks Really Affect Taste?||December 10, 2014|DAILY BEAST
Their legendary barrel aging program is unique, even among Scottish distilleries, for its range of natural color expressions.
Why Natural Color Is So Crucial To Understanding A Whisky’s Flavors||December 10, 2014|DAILY BEAST
Gelhaus proceeded to fire eight shots at Gonzalez, striking him seven times, when he said Gonzalez raised the barrel.
Worse Than Eric Garner: Cops Who Got Away With Killing Autistic Men and Little Girls|Emily Shire|December 4, 2014|DAILY BEAST

And yet, even while seldom leaving the capital, they offer a perspective on the city that tilts toward distortion.
Heart of Darkness: Into Afghanistan’s Taliban Valley|Matt Trevithick, Daniel Seckman|November 15, 2014|DAILY BEAST
One hundred to the right barrel—nothing left for the second barrel!
Gallipoli Diary, Volume I|Ian Hamilton
It wasn't any scruple of mercy, for Hicks was as cold-blooded a brute as ever glanced down a gun-barrel.
Raw Gold|Bertrand W. Sinclair
A Laplander who cannot get Tobacco sucks chips of a barrel or pieces of anything else which has contained it.
Tobacco; Its History, Varieties, Culture, Manufacture and Commerce|E. R. Billings.
In the fall the barrel of his rifle had been so covered with dead leaves and dust that he could not take aim.
Hunting the Lions|R.M. Ballantyne
The second barrel was discharged with no better result, except that a splinter of its horn was knocked off.
Hunting the Lions|R.M. Ballantyne

British Dictionary definitions for barrel distortion

barrel distortion

noun

photog distortion of an image produced by an optical system that causes straight lines at image margins to bulge outwards

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012