Pistol Magazines

Reising .22 Cal. Auto Pistol

Iver Johnson

Iver Johnson Target Model 66a


Iver Johnson


Manufactured by Iver Johnson's Arms & Cycle Works, Inc., of Fitchburg. Mass., the Model 66 Trails-man revolver with 6" barrel was introduced in 1958. Chambered for the .22 long rifle cartridge, this 8-shot, top-break, double-action revolver features a rebounding hammer and adjustable target sights. Chambers are counterbored to enclose the cartridge heads, and front face of the cylinder has a flash shield to direct powder gases forward and away from the shooter. Cartridges or fired cases arc ejected manually by depressing the ejector rod under the barrel. The

Model 66 Trailsman revolver with 6" barrel is optionally available with one-piece plastic or walnut grip.

From 1960 until 1964, the Model 66 revolver was offered with 23/4" barrel under the designation Trailsman-Snub (Snub Model 66S). In addition to cal. .22 long rifle, the Snub Model 66S Trailsman revolver was chambered for the .32 S&W and .38 S&W center-fire cartridges, (cylinder capacity 5 rounds)

In 1962, the Model 66 Trailsman cal. .22 long rifle revolver was offered with AVi" barrel. This version was discontinued in 1964.


Gun Finto Cal22

INotc that the 2% " barrel Snub Model 66S (B) is provided with the smaller two-piece grips (39) and single transverse grip screw (37). The standard model (A) with 6" barrel has one-piccc grip with thumb rest (38). Grip is secured by a single screw (36).

Iver Johnson Revolver Joint Screw

2 In reassembling lock mechanism, replacing trigger guard (29) in frame is facilitated by using a small slave-pin (as shown at ('A') to secure scar and sear spring (25. 26) in rear of trigger guard. Make the slave-pin of brass rod or wood, slightly shorter than width of trigger guard. With slave-pin in place, trigger guard can be replaced in frame (18) with sear and spring and trigger guard pins (30) replaced. As rear trigger guard pin is drifted into frame, it will push slave-pin out.

Pistol Magazine AssemblyFnh Scar Barrel Screw Springs

Parts Legend

2. Front sight blade

3. Front sight spring

4. Front sight adjusting screw

5. Front sight pin

6. Barrel catch

7. Rear sight blade

8. Rear sight adjusting screws (2)

9. Barrel catch spring

10. Barrel catch plunger

11. Quill

12. Ejector rod

13. Extractor spring

14. Cylinder

15. Extractor pin

16. Extractor

17. Barrel catch screw

18. Frame

19. Joint screw

20. Cylinder stop

21. Cylinder stop spring

22. Lifter

23. Lever spring

24. Lever and pin

25. Sear

26. Sear spring

27. Trigger

28. Trigger spring

29. Trigger guard

30. Trigger and guard pins (3)

31. Hammer

32. Hammer screw

33. Mainspring plunger

34. Mainspring

35. Mainspring adjusting screw

36. Grip screw (for large grips)

37. Grip screw (for small grips

38. Grips (large, one-piece)

39. Grips (small, two-piece) (Tang plug screw (not shown)


To separate barrel assembly from frame (I, IB) remove joint screw (19) and pull barrel off joint. Rear sight and barrel catch assembly (6) can be removed by unscrewing barrel catch screw (17) from left side of top strap of barrel, taking care not to allow ejection of barrel catch spring and plunger (9, 10). Cylinder (14) can be removed by holding up barrel catch and pulling cylinder to rear off quill (11). Complete disassembly of cylinder, extractor (16), and ejector rod (12) assembly is unnecessary for normal cleaning purposes and is not recommended.

Remove grip screw (36) and pull grip off frame. Unscrew mainspring adjusting

Procedure screw (35) until it stops. Remove hammer screw (32). Hold trigger (27) back and remove hammer (31) through top of frame. Remove mainspring plunger (33) and mainspring (34) through top of frame. Unscrew and remove mainspring adjusting screw through cutout in frame. Drift out trigger guard and trigger pins (30). Remaining lock parts are easily removed from frame. Reassemble in reverse order. Be sure that barrel catch is held up in unlocked position when replacing cylinder on quill to avoid damaging cylinder finish.

Note: Hammer must be in fired position when opening or closing revolver or lever will be damaged. ■

Melior PistoleInfallible PistolInfallible Pistol

Though the Davis-Warner "Infallible" was made in 2 distinct variations, it is a comparatively scarce American pocket pistol. This is probably due to the fact that it was a clumsy, bulky design. When compared with its contemporaries, the Colt, Remington, or Mauser, it had very little to recommend it. In shape and workmanship, it resembled some of the lesser known Belgian pocket pistols such as the Melior or the Feil. It is generally found either blued or with a mottled-color finish, and always in .32 cal. ACP.

One of a series

While Davis-Warner magazines resemble most common .32 pistol magazines in outline, the row of holes and the notch in the back-strap are distinctive features.

Another distinctive feature Is the overlay construction used to make the magazine. This construction leaves an edge of sheet metal showing along the backstrap.—E. J. H0FF-SCHMIDT

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  • Cristina Gallo
    How to repair iver johnson shotgun barrel?
    8 years ago
  • Damian
    How do i remove cylinder from1960s iver jounsontarget mod.55a?
    7 years ago
  • Nazario
    How to disassemble a iver johnson revolver?
    7 years ago
  • Bruto
    How to make revolver cylinder?
    7 years ago
  • deanna
    How to install the lever spring on the iver johnson revolver?
    7 years ago
  • Eric
    How to install a Double Action Sear Spring iver johnson?
    7 years ago
  • sandra
    How to put in a trigger spring iver johnson trailsman 66?
    4 years ago

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