Bev Fitchetts Gun Magazine Firearms Assembly

During the 1919 National Matches at Caldwell, N. J., Winchester Repeating Arms Co. introduced prototypes of a new cal. .22 bolt-action smallbore target rifle which bore the factory code number G52R. Winchester employee Thomas C. Johnson had been issued patents on both the rifle and the curved 5-shot box-magazine to which it was adapted. Designated Model 52, first commercial Droduction was in 1920. In

1924 an improved model was introduced which incorporated a better stock design, but with no changes in action or barrel. The Model 52 was first made with heaw barrel in 1927.

In 1929, a much-improved version was offered featuring speed-lock ignition, improved sights, and improved stock with semi-beavertail fore-end. Shortly thereafter parts kits were made available to modernize the original 4slow-lock' action to the newer speed-lock type.

The Model 52 Sporting rifle with lightweight barrel and sporting stock was authorized in 1934. This model was discontinued in 1959.

The Model 52B rifle was introduced in 1937. It incorporated several changes, including re-designed trigger, pivoted safety lock on right side of receiver forward of bolt handle, and new speed-lock mechanism. Stock for the standard-barrel model was re-designed, and the heavy-barrel model was furnished with the new style Marksman stock.

In 1951 the Model 52B was superseded by the Model 52C with new Micro-Motion trigger, improved Marksman stock, and improved barrel band. General specifications were the same as the Model 52B. As a matter of interest, serial numbers of the Model 52C began with gun #75,550. Production of the Model 52C was discontinued in 1961 at which time it was replaced with the Model 52D.

Winchester Micro Motion Trigger

Parts Legend

1. Receiver

2. Receiver sight base plug screw (2)

3. Breech bolt guide

4. Barrel

5. Telescope sight rear mount base

6. Telescope sight rear mount base screw (2)

7. Telescope sight front mount base

8. Telescope sight front mount base screw (2)

9. Front sight base plug screw (2)

10. Barrel band

11. Barrel band lug

12. Barrel band screw

13. Barrel band screw escutcheon

14. Tang screw

15. Tang screw escutcheon

16. Housing screw

17. Breech bolt handle locking plunger

18. Breech bolt handle locking plunger spring

19. Breech bolt handle locking plunger pin

20. Housing (complete assembly)

21. Housing retaining pin

22. Safety lever

23. Safety lever spring

24. Breech bolt lock

25. Breech bolt (complete assembly)

26. Magazine holder

27. Magazine holder screw, rear

28. Magazine holder screw, front

29. Magazine catch

30. Magazine catch pin

31. Magazine catch spring

32. Magazine

33. Stock

34. Resilient spacer (3)

35. Magazine release plunger

36. Magazine release plunger escutcheon

37. Stock abutment plate

38. Stock screw bushing

39. Stock screw

40. Guard

41. Guard plate

42. Guard screw

43. Forearm adjustment base

44. Forearm adjustment front swivel bow & screw

45. Forearm adjusting swivel base

46. Forearm adjusting swivel bow base screw

47. Forearm adjusting swivel bow

48. Forearm adjustment base screw (rear)

49. Forearm adjustment base screw escutcheon

50. Forearm adjusting bow screw escutcheon

51. Buttplate

52. Buttplate screw (2)

53. Stock swivel

54. Stock swivel screw (2)

Extractor Screws Rifle

Fig. 1. Breech bolt assembly parts list

A. Breech bolt

B. Extractor, left

C. Extractor, right

D. Extractor pin (2)

Breech bolt can be disassembled by clamping body of brcech bolt (A) firmly in a vise. Breech bolt handle (H) is drawn back far enough to expose firing pin guide pin (G). Drift out pin with a punch, leaving punch in place through hole. Remove firing pin plug (L). Spring (K) may be released by removing

. Breech bolt handle Firing pin . Firing pin spring . Firing pin plug punch, but care should be taken to prevent forcible expulsion of spring from firing pin. Remove firing pin and breech bolt handle (H) to rear. In reassembly, firing pin spring (K) must be forced forward of pin hole in breech bolt with blade of screwdriver or similar tool to permit re-entry of pin.

Fig. 1. Breech bolt assembly parts list

E. Extractor spring, left J.

F. Extractor spring, right K

G. Firing pin guide pin L

Disassembly Procedure

To remove bolt, check to be sure chamber is empty, then close bolt and pull trigger. Push forward on trigger and draw bolt rearward out of receiver. When withdrawing bolt, lift rear of bolt up slightly to clear comb of stock.

To reassemble bolt to receiver, slide bolt into receiver with flat side down. Align lug on underside of bolt handle with slot in receiver. While holding trigger back, push bolt all the way forward into receiver.

To disassemble barrel and receiver from stock, remove barrel band screw (12), tang screw (14), and stock screw (39). Lift bar rel and receiver up out of stock (33).

Magazine holder (26) is removed by unscrewing magazine holder screws (27 & 28). Remove breech bolt guide (3) from top of receiver. To remove complete trigger housing assembly (20), unscrew housing screw (16) from top of receiver and drift out housing retaining pin (21). Drop housing down out of bottom of receiver. Safety lever spring (23) is easily removed from housing by lifting its front end out of slot at front edge of housing. Safety lever (22) and breech bolt lock (24) can be lifted up off pins in housing. Reassemble in reverse order. ■

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Responses

  • LEEVI
    How do you remove a bolt from the 1920 mauser rifle?
    8 years ago
  • saradas hornblower
    How to disassemble a model 52 a speedlock winchester?
    8 years ago

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