AIR FORCE MIL-R-3285-1950 RIFLES U.S. CALIBER.30 M1 AND M1C《M1 及 M1C型30MM美国步枪》.pdf

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1、7 -8 r- _ MIL-R-3285 . . u= ,-. - - - _- . - -. - and in the event that the firing pin blow is not within the specified limits, the rifle shall not be accepted until properly corrected. 4.1.2.4.2 Defective ammunition. - Mal- functions in any test traceable to defective ammunition shall not be counte

2、d against the rifle being tested. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-3285 i0 O6 029LBb 7 . -i -e- -I. -.-*-I-_ II_ . . . . T I MIGR-3285 . - zL.L.2.4.8 Refeotim.-Rifles rejected Bn- diuidually because of inspection or mafunc- tiom,

3、 nonacceptable conditions, or broken or defective components or assemblies in any test except the endurance test may be con- ditioned and resubmitted for inspection or test in which failure occurred and such other 3- 5 g 5 4 of motion w in aervice, “he inspector may increase the quantity of springs

4、to be tested. The contractor shall provide equipment, in- cluding. suitable recording cyclometer, for making this test and shall record the con- ditions, number of cycles specified, and re- sults of each test. i tests as the inspector may consider necessary, provided the number of rifles submitted f

5、or auch reinspection and retest does not exceed !f the inspector. . 4,3 Trig;er test,Each rifle of a lot shall be tested for trigger pull using a dead weight attached to a hooked wire. The pre- parallel to axis of bore when the rifle is held with the barrel in a vertical position. The percent of the

6、 lot* Of a-larger*num- scribed shall be applied pendant and may be made .- at the . 4.1.2.4.4 Endzcrance retest. - If the rifle represening any lot or lots fails to meet the specified requirements in the endurance test, trigger shall be carefully checked for “creep.“ 4.4 hter-t a range of 100 yale-

7、and-ebow .regt, -at a, range .of no. g.-f . L : :. . . *- - *_. - ,b 4.8.1: . . . a . .- ._ . -, 4.9.2 Rifle; Ml6; * . .- _. -. - . - 43.2.1 Each riflshah be fired for accuracy at a range f 100 yards. Wng shall be one using 8 hachine -rest arid Woodwoi-th %ype cradle. The flash hider shall be attach

8、ed to the rifleduring the firing. Government stand- ard M2 bail ammunition of known accuracy shall be used. All shots shall be within ar cut the edge of a circle 21/2 inches in diameter (all shots within a 3.10-inch circumscribed circle). 4.10 Endurance test. 4.10.1 One rifle selected by the inspect

9、or from the first 600 rifles and at least one rifle SO selected from each successive 6,000 rifles, found satisfactory. in other tests, shall be con- sidered IS representative weapons and shall be subjected to endurance tests of 6,000 rounds each. Twenty clips shaU be selected on the same basis and u

10、sed in the test o the rifle. . a _ 4.10.2 Endurance tests shail be .fired in series not to exceed 120 rounds at the rate of approximately 40 rounds per minute, using caliber ,BO ball ammunition and 20 clips se- lected for the test, in rotation, so that ap- proximately 300 rounds will be fired from e

11、ach clip, 4.10.3 During this test, the barrel shall be cooled either by air or water after each series. Cleaning and oiling at reasonable intervals is permissible. 4.10.4 Upon completion of the endurance test, the rifle shall be cleaned and oiled.and ali worn and defective components replaced. Befor

12、e acceptance, the rifle shall be thorough- 8 - _ - - i -.-. -) - -. -“ - _ L, - J y mnditioned at f;*-. 7 Y?- . .- . -_ _-_ . * =- -. -. - ,* .i: -PREPARATION . FORELIVERY_ _- .i 8 3-1 Pteservation, packaging, and packing. . 5.i.i- Rifiei -: Rifles Shiii .be. prepared inaccirdan- with,Publication ;P

13、E-6. =. g.l.2 Spare $- for .the Air. Force in accordance. with Specification 9440645 ; and for the Navy in accordance with the Navy Shipment Mark- - . _- -_ ing Handbook. - 6.1 Intended use.-The MI rifle is btended for.genera1 service.use; the MlC rifle for long range or sniper use. 6;2 Ordering dat

14、a.- - Procurement docu- ments should specify: a, b. C. . d. Title, number, and date of this speci- fication. Model of rifle (see 1.1) Telescope for MIC rifle when re- quired (see 3.1.14)? List of interchangeable components and assenlblies (see 3.4). Notice.-This specification, together with specific

15、a- tions and drawings pertaining to it and bearing a “Notice“ of similar restrictions, ia intended for use only in connection with procurement by the United States Government, and shall not be reproduced either wholly or in part except when authorized in connection with Government procurement, nor b

16、e used for any other purpose except when specifically authorized by the Chief of Ordnance. Custodian: - . Army-Ordnance Corps Other interest: - Army-T Navy-OSMC Air Force. U. m. OOVIRNYENT IRINTINO OFFIGPI (9% Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-