There are questions ever now and then about when a particular Ruger was made. Attaching a link to the Ruger website where you can find out the year your gun was made by model and serial number. There are a few flaws in some of the info and the list can sometimes be a little confusing but generally it will get you the correct info quickly. After doing you search if you have any questions post them here and I am sure one of our members can help out.
FT44
http://www.ruger.com/service/productHistory.html