Vaquero Revolver (Includes Bisley-Vaquero Models) Calibers: 357 Mag, 38-40 Win, 40 S&W, 44-40 Win, 44 Mag, 45 Colt (Manufactured from 1993-2005)
Beginning Serial Number:	Years of Production:
55-00001	1993
55-10037	1994
55-51006	1995
56-01218	1996
56-30005	1997
56-72004	1998
56-98838	1999
57-52004	2000
57-82791	2001
58-01006	2002
58-31543	2003
58-50474	2004
58-91296	2005

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.

For details on your specific serial number you may contact our Service Department: 336-949-5200

For serial numbers manufactured prior to our electronic records, or for an official letter confirming the details on your firearm please download and mail in the Request for Letter of Authenticity form.