Editing Slug barrel (section)

==The rifled slug barrel==
The next step was the fully rifled shotgun barrel by Hastings, a manufacturer of aftermarket shotgun barrels.  Hasting's Paradox shotgun barrels were offered as aftermarket replacements for the most common brands of pump and semi-automatic shotguns and they quickly became popular with slug shooters.  Hastings rifled shotgun barrels are designed for firing slugs and are not to be confused with barrels of the [[Holland & Holland]] [[Paradox gun]].  "Paradox" has been used by [[Holland & Holland]] of London since the late 19th century to describe large bore guns with the last few inches of the barrel rifled with a special "ratchet" style of rifling.  [[Holland & Holland]] purchased the rights to the [[Paradox gun]] from the inventor, Col [[George Vincent Fosbery]] VC.  They chose the name "Paradox" because shotguns are defined by their smoothbore barrels, and a "rifled shotgun" was something of a contradiction in terms.  [[Holland & Holland]]'s Paradox and Nitro-Paradox guns are not slug guns as they fire standard [[shotgun shell]]s and cartridges with special Paradox bullets fully interchangeably.<ref>{{cite web
|url=http://www.classicshooting.com/blogs/reading/17662636-what-is-a-paradox
|title=What is a PARADOX Gun? (Excerpt from a Holland & Holland Press Release)}}</ref>   Under normal circumstances, any [[firearm]] with a rifled barrel over 12.7 millimeters (.50 inches) is legally considered a [[destructive device]] in the United States.  A [[BATFE]] ruling was obtained stating that a firearm designed to fire [[shotgun shell]]s that was converted to fire [[shotgun slug]]s with the addition of a rifled barrel was still a shotgun, and thus not a destructive device.  Now many manufacturers offer shotguns for sale with rifled barrels already installed. [[Bolt action]] and [[single-shot]] [[break-action]] designs are particularly accurate. With the use of modern [[saboted]] slugs designed only for rifled barrels, the modern slug gun offers nearly the accuracy of a typical [[rifle]], though at much shorter ranges.