www.handloads.com/misc/Smith.Model.Changes.asp S&W Model Listing
Model year year Frame Caliber Name
intro Discon Size
10 1899 K 38 Spl Military & Police
10 HB 1960 K 38 Spl Military & Police Heavy Barrel
11 1936 1965 K 38 S&W Military & Police
12 1953 1986 KA 38 Spl Military & Police Airweight
13 1974 K 357 Mag 357 Magnum M&P
14 1947 1982 KT 38 Spl K-38 Masterpiece
15 1949 KT 38 Spl K-38 Combat Masterpiece
16 1947 1973 KT 32 S&W Long K-32 Masterpiece
17 1946 KT 22 LR K-22 Masterpiece
18 1949 1986 KT 22 LR K-22 Combat Masterpiece
19 1955 KT 357 Mag 357 Combat Magnum
20 1930 1966 N 38 Spl 38/44 Heavy Duty
21 1908 1966 N 44 Spl 1950 Model 44 Military22 1917 1966 N 45 ACP 1950 Model 45 Army
23 1931 1966 NT 38 Spl 38/44 Outdoorsman
24 1908 1966 NT 44 Spl 1950 Model 44 Target
24 1984 1984 NT 44 Spl 7500 units reintroduced
25 1955 1983 NT 45 ACP 1955 Model 45 Target
25-3 1977 1977 NT 45 Colt 125th Commemorative
25-4 1977 1977 NT 45 Colt 125th Delux Comm
25-5 1978 NT 45 Colt 45 Colt
26 1950 1966 NT 45 ACP 1950 45 Target Light Barrel
27 1935 NT 357 Mag 357 Magnum
28 1954 1986 NT 357 Mag 357 Highway Patrolman
29 1955 NT 44 Mag 44 Magnum
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Model 20,21,22,23,24,25 (except 25-5) 26,27,28,29
-1 1960 Change to LH thread
-2 1961 Cylinder stop changed, hole in front of trigger
guard eliminated
-3 1982 Eliminate cylinder counterbore (magnums only)
-4 2004 Thunder Ranch 44 Special, fixed sight