Description and Rules for the Management of the United States Rifle Caliber .30, Model of 19031917 - 80 pagini |
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Termeni și expresii frecvente
ammonia ammunition Angle of departure Assem assembled ball cartridge bandoleer barrel BASSWOOD bayonet catch BLANK CARTRIDGE bolt mechanism Bolt Stop bore bullet Butt Plate Screw Butt Plate Spring Butt Swivel CALIBER 30 chamber chest Cleaning Rod clip cocking piece dismounting Drift Slide ejector pin extractor collar feet per second firing pin sleeve fixed base fixed stud floor plate catch front end groove hand grenade Hand Guard hook inches leaf loading Lock Spring locking lug lower band spring MAGAZINE MECHANISM magazine spring mainspring metal fouling movable base movable stud muzzle velocity notch Oiler and Thong packing pin hole powder fouling Range yards rear end receiver recess remove right side view riveted safety lock spindle screw hole sear shown in Fig sleeve lock slide cap screw slot SPRINGFIELD ARMORY Stock Screw striker tang target thong brush top view trigger pin undercut UNITED STATES RIFLE washer Windage Screw
Pasaje populare
Pagina 34 - ... take the extractor in the right hand and insert the lug on the collar in the undercuts in the extractor by pushing the extractor to the rear until its tongue comes in contact with the rim on the face of the bolt (a slight pressure with the left thumb on the top of the rear part of the extractor assists in this...
Pagina 31 - To charge the magazine, see that the cut-off is turned up showing "on," draw the bolt fully to the rear, insert the cartridges from a clip, or from the hand, and close the bolt. To charge the magazine from a clip, place either end of a loaded clip in its seat in the receiver and, with the thumb of the right hand, press the cartridges down into the magazine until the top cartridge is caught by the right edge of the receiver. The...
Pagina 39 - If the bore is not clean when oiled — that is, if powder fouling is present or rust has started — a half inch of cosmic on the outside will not stop its action, and the barrel will be ruined. Remember that the surface must be perfectly cleaned before the heavy oil is applied. If the instructions as given above ' are carefully followed, arms may be stored for years without harm.
Pagina 29 - ... the lug on the cocking piece projecting, through the slot in the sleeve, into its groove in the receiver. As the sleeve remains longitudinally stationary with reference to the bolt, this rearward motion of the firing pin, and consequently of the striker, will start the compression of the mainspring, since the rear end of the latter bears against the front end of the barrel of the sleeve and its front end against the rear end of the firing pin sleeve. When the bolt handle strikes the receiver,...
Pagina 39 - The bore is then ready to be coated with cosmic. At ordinary temperatures cosmic is not fluid. In order, therefore, to insure that every part of the surface is coated with a film of oil, the cosmic should be warmed. Apply the cosmic first with a brush; then, with the breech plugged, fill the barrel to the muzzle, pour out the surplus, remove the plug, and allow to drain. It is believed that more rifles are ruined by improper preparation for storage than from any other cause. If the bore is not clean...
Pagina 32 - When the cut-off is turned up, the magazine is "on"; the bolt can be drawn fully to the rear, permitting the top cartridge to rise high enough to be caught by the bolt in its forward movement. As the bolt is closed, this cartridge is pushed forward into the chamber, being held up during its passage by the pressure of those below. The last one in the magazine is held up by the follower, the rib on which directs it into the chamber.
Pagina 32 - When the bolt is closed, or slightly forward, the cut-off may be turned up or down as desired. When the bolt is in its rearmost position, to pass from loading from the magazine to single loading, it is necessary to force the top cartridge or • follower. below the reach of the bolt, to push the bolt slightly forward, and to turn the cut-off down, showing
Pagina 40 - Neither of these ammonia solutions has any appreciable action on steel when not exposed to the air, but if allowed to evaporate on steel they attack it rapidly. Care should, therefore, be taken that none spills on the mechanism and that the barrel is washed out promptly with soda solution. The first application of soda solution removes the greater portion of the powder fouling and permits a more effective and economical use of the ammonia solution. These ammonia solutions are expensive and should...
Pagina 38 - Slip a 2.inch section of rubber hose over the muzzle down to the sight and fill with the standard solution to at least one.half inch above the muzzle of the barrel. Let it stand for 30 minutes, pour out the standard solution, remove hose and breech plug, and swab out thoroughly with soda solution to neutralize and remove all trace of ammonia and powder fouling. Wipe the barrel clean, dry and oil. With few exceptions, one application is sufficient, but if all fouling is not removed, as determined...
Pagina 38 - The proper method of oiling a barrel is as follows: Wipe the cleaning rod dry ; select a clean patch and thoroughly saturate it with sperm oil or warmed cosmic, being sure that the cosmic has penetrated the patch ; scrub the bore with the patch, finally drawing the patch smoothly from the muzzle to the breech, allowing the cleaning rod to turn with the rifling. The bore will be found now to be smooth and bright so that any subsequent rust and sweating can be easily detected by inspection.