The following lines were added (+) and removed (-):
The above chart shows the approximate first serial number shipped for the indicated year. This number should be used as a point of reference only. It is not necessarily the very first serial number shipped, but it can be used to determine the approximate year your Ruger firearm was shipped.Ruger does not necessarily produce firearms in serial number order. There are occasions when blocks of serial numbers have been manufactured out of sequence, sometimes years later. Also, within a model family the same serial number prefix may be used to produce a variety of different models, all in the same block of serial numbers. And in some cases, firearms may be stored for a length of time before they are shipped.== New Mini-14 Ranch Rifle ==New Mini-14 Ranch Rifle* https://ruger.com/service/productHistory/RI-NewMini14Ranch.htmlCaliber: 223 Rem, 5.56 NATO, 300 BLK Beginning Serial Number: Years of Production: 580-00001 2005 580-15286 2006 580-32382 2007 580-50951 2008 * 580-76276 and 581-00000 2009 * 581-48753 2010 * 581-71056 2011 * 581-95645 2012 * 582-29041 2013 * 582-67966 2014 * 583-17719 2015* New Mini-14 Ranch Rifles rollmarked with Mini Thirty Rifles beginning in 2009.