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Discussion Starter #1
It might not be the best one out there but it's fairly complete.



http://www.handloads.com/misc/Smith.Model.Changes.asp



Sticky anyone?



Partial list of changes to Smith & Wesson revolvers



S&W revolver names before World War II

Name Caliber Frame

.22 Hand Ejector Ladysmith 22 Long M

.22/32 Target 22 Long Rifle I

.22 Outdoorsman 22 Long Rifle K

.32 Hand Ejector (round Butt) 32 S&W Long I

.32 Regulation Police (Square Butt) 32 S&W Long I

.32-20 Hand Ejector 32-20 Win. K

.38 Military&Police 38 Spl K

.38 Hand Ejector (same as above, with

adjustable sights)

.38 Regulation Police (Square Butt) 38 S&W I

.38 Terrier 2" Round Butt 38 S&W I

.38/44 Heavy Duty (fixed sights) 38 Spl N

.38/44 Outdoorsman (Adj. Sights) 38 Spl N

.357 Magnum 357 Mag N

.44 HAnd Ejector Military Model 44 Spl N

.44 Hand ejector Model 1926 44 Spl N

(shrouded extractor rod)

.45 U.S. Army Revolver, Model 1917 45 ACP N

.455 Hand ejector British Service 455 Mark II N



Letter designations assigned S&W Revolvers 1900-1930

32 Double Action R

32 Safety Hammerless G

38 Single Action S

38 Double Action D

38 Safety Hammerless Y

44 Double Action L

22 Hand Ejector M

32 Hand ejector I

38 Military and Police K

44 Hand Ejector N

38 Double Action Perfect P

22 Perfect Single Shot T

35 Automatic A

32 Regulation Police B

38 Regulation Police E

22/32 Heavy Frame Target V



Factory Model/caliber designation begun in 1930s

22/32 Tarket IT22 Square Butt

22/32 Kit Gun IT22 Round Butt

K-22 Masterpiece KT22

32 Hand Ejector I32 Round Butt

32 Regulation Police I32 Square Butt

K-32 Masterpiece KT32

38 Regulation Police I38 Square Butt

38 S&W Terrier I32 Round Butt

38 Military & Police K38

38/44 Heavy Duty N38

K-38 Masterpiece KT38

38/44 Outdoorsman NT38

357 Magnum NT357

1926 Model 44 Military N44

1926 Model 44 Target NT44

1917 Army N45







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 Military

22 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

30 1896 1976 I&J 32 S&W Long 32 Hand Ejector

31 1917 I&J 32 S&W Long 32 Regulation Police

32 1936 1974 I&J 38 S&W 38 Terrier

33 1917 1974 I&J 38 S&W 38 Regulation Police

34 1936 I&J 22 LR 22/32 Kit Gun 4" barrel

35 1911 1973 I&J 22 LR 22/32 Target 6" Barrel

36 1950 J 38 Spl 38 Chief Special

37 1952 JA 38 Spl 38 Chief Special Airweight

38 1955 JAC 38 Spl Bodyguard

39 1954 1981 Auto 9mm 9mm Double Action

both alloy and steel

39-1 1960 1960 Auto 38 AMU Commonly called M-52A

alloy

40 1952 1974 JS 38 Spl Centennial

41 1952 Auto 22 LR 22 Semi-Automatic

41-1 1960 1972 Auto 22 short 22 Short Semi-Auto

42 1953 1974 JAT 38 Spl Centennial Airweight

43 1954 1974 JAT 22 LR 22/32 Kit Gun Airweight

44 1954 1959 Auto 9mm 9mm Semi, Single Action

alloy

45 1936 1965 K 22 LR 22 Military & Police

46 1959 1968 Auto 22 LR 22 Semi Auto

47 Experimental number used on several guns

48 1959 1986 KTM 22 WMRF K-22 Masterpiece MRF

49 1959 JC 38 Spl Bodyguard Steel Frame

50 1955 1975 JT 38 Spl 38 Chief Special Target

51 1960 1974 JTM 22 WMRF 22/32 MRF Kit Gun

52 1961 Auto 38 Spl 38 Chief Special Target

Steel

52-A See Model 39-1

53 1961 1974 KTC 22 Jet 22 center fire magnum

54 Experimental never issued

55 Experimental never issued

56 1962 1963 KT 38 Spl KTX 38 Became Mod 15 2" bl.

57 1964 NT 41 Mag 41 Magnum

58 1964 1978 N 41 Mag 41 Magnum Military& Police

59 1971 1981 Auto 9mm 14 shot 9mm Semi-Auto

Alloy

60 1965 J 38 Spl 38 Chief Special Stainless

61 1970 1973 Auto 22 LR 22 Escort

62 Experimental never issued

63 1977 JT 22 LR 1977 22/32 Kit Gun Stainless

64 1970 K 38 Spl 38 Military&Police Stainless

65 1974 K 357 Mag 357 Mag M&P Stainless

66 1971 KT 357 Mag 357 Combat Mag Stainless

67 1972 KT 38 Spl 38 Combat Masterpiece Stainless

68 1976 1976 KT 38 Spl California Highway Patrol

Model Stainless

69/75 Not officially assigned -- used experimentally

76 1968 1974 Auto 9mm Machine Pistol

77 1970 1978 22 cal Air rifle

78 1971 1978 22 Cal CO2 Pellet Pistol

79 1971 1978 177 Cal CO2 Pellet Pistol

80 1975 1978 177 BB CO2 Semi Auto Rifle







New Model Numbering System

--------------------------

147-A 1979 1979 9mm 14 shot DA steel frame Model 59

325PD 2003 N 6 shot 45 ACP, 2.5" barrel, Scandium Frame

329PD 2003 N 6 shot 44 Magnum, Scandium Frame, Stainless Brl, Ti Cylinder

340 J 5 shot 357 Magnum, Scandium Frame, shrouded/internal hammer

396 L 5 shot 44 Special, 3-1/8" barrel, Aluminum alloy frame

439 1979 9mm 8 shot DA Semi Auto Alloy

459 1979 9mm 14 shot DA Semi Auto Alloy

469 1983 9mm 12 Shot DA Semi Auto Alloy

500 2003 X 5 shot 500 S&W Magnum

520 1980 1980 N 357 Mag, Fixed Sights

539 1980 1983 9mm 8 shot DA semi auto Carbon Steel

547 1980 1985 K Steel 9mm Military & Police

559 1980 1983 Auto 9mm 14 shot DA Semi Auto Carbon Steel

581 1980 L 357 Mag Distinguished Service Magnum

586 1980 L 357 Mag Distinguished Combat Magnum

610 N 10 mm, 6 shot, stainless

624 1985 1986 NT 44 Spl 1985 Target Stainless

625 N 45 ACP and 45 Colt Stainless

627 N 357 Magnum, Stainless

629 1979 NT 44 Mag Stainless

629 Classic N 44 Mag, Stainless, full underlug

639 1982 Auto 9mm 8 shot DA Semi Auto Stainless

645 1985 Auto 45ACP DA Semi Auto Stainless

649 1985 JC 38 Spl Bodyguard Stainless

650 1982 JM 22 WMRF Service Kit Gun Stainless

651 1982 JTM 22 WMRF Target Kit Gun Stainless

657 N 41 Magnum, 6 shot, Stainless

659 1982 Auto 9mm 14 shot DA semi Auto Stainless

669 1985 Auto 9mm 12 shot DA Semi Auto Stainless

681 1980 L 357 Mag Distinguished Service Mag Stainless

686 1980 L 357 Mag Distinguished Combat Mag Stainless

686+ L 357 Mag, 7 shot cylinder, Stainless

SW1911 2003 45 ACP 1911





Model and Dash numbering system

--------------------------------

Model 10

-1 1959 Heavy Barrel

-2 1961 Changed extractor rod thread to LH on standard barrel

-3 1961 Same as above, for heavy barrel

-4 1962 Screw in front of trigger eliminated

-5 1962 1/10" to 1/8" front sight, on standard barrel

-5 1962 Screw in front of trigger guard eliminated on

heavy barrel model

-7 1977 Change to put gas ring from yoke to cylinder

-8 1977 Change to put gas ring from yoke to cylinder

on heavy barrel model

Model 12 1957

-1 1962 Change extractor rod to LH thread, eliminate

screw in front of trigger guard

-2 1962 Front sight changed from 1/10" to 1/8"

-3 1977 Gas ring on yoke to cylinder

-4 1984 Change frame thickness to same as all K frames

Model 13 No designation used to avoid confusion with air force model

13 air crewman

Model 13

-1 1974 Introduced

-2 1977 Change back to gas ring on cylinder

-3 1982 eliminate cylinder counterbore

Model 14,15,16,17,18,48,53 (all start without dash in 1957)

-1 1959 Change to LH extractor rod thread

-2 1961 Cylinder stop changed, hole in front of trigger

guard eliminated

-3 1967 Relocation of rear sight leaf screw

-4 1977 Changed gas ring from yoke to cylinder

19 All of the above changes and

-5 1982 Eliminate cylinder counterbore



N-Frame Model Blue

------------------



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

Model 57 1964 Introduced

-1 1982 Eliminate cylinder counterbore

Model 629 1980 Introduced

-1 1982 Eliminate cylinder counterbore

Model 25-5 1978 -5 means 45 Colt caliber

125'th anniversary model, -3 (standard) -4 (delux)

both of these used a shorter than standard cylinder.

-7 1985 45 Colt, 5" barrel, unfluted cylinder

K-Frame Stainless Models

------------------------

64 1970 Introduced

-1 1972 Heavy barrel

-2 1977 2" standard barrel, gas ring from yoke to cylinder

-3 1977 Same as above, for heavy barrel

65 -1 1974 introduced

-2 1977 gas ring from yoke to cylinder

-3 1982 Eliminate cylinder counterbore

66 1971 introduced

-1 1977 Gas ring from yoke to cylinder

-2 1982 Eliminate cylinder counterbore

67 1972 introduced

-1 1977 gas ring from yoke to cylinder

39 1957 start of model numbering system

-1, 1961 Made in 38 AMU cartridge for military 87 made.

52-A -2 1971 Change of extractor

41 1957 start of model numbering system

-1 1960 22 Short chambering

(dash number not always stamped)

52 1961 introduced

-1 1963 Single action only

-2 1971 Changed extractor

52-A See model 39-1

59 1971 introduced, no dash numbers used during production

61 1970 introduced in March

-1 May '70 Add magazine safety

-2 Sep '70 Addition of barrel nut

-3 1971 Forged Al frame

76 1968 introduced, discontinued 1974 no dash numbers used



Small Frame Revolvers

---------------------

Model 30, 31, 32, 33, 34, 35

1957 Start of numbering system

-1 1961 Change from I frame to J frame

36 -1 1967 Indicates 3" heavy barrel

37, 38, 40, 42, 43, 49, 63, 649, 650, 651

No dash numbers ued on above numbers

60 1965 Introduced

-1 1972 Heavy barrel variation made in 1972, not marketed

limited production only
 

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