As a first step In loading this weapon, it is necessary to grasp the bolt wings at the rear of the breechblock and pull to the rear. The breechblock will ride over and cock the hammer, and the recoil spring will be compressed within the breechblock as shown in the drawing. The magazine follower will hold the breechblock in rear position. Inserting a clip in the clip guide and stripping the cartridges down into the magazine, then withdrawing the clip will release the breechblock and let it run forward to load the chamber ready for immediate firing.
compression point for the rear of the recoil spring when at rest. As the breechblock is drawn back, the recoil spring is compressed against this block.
6 Firing pin spring around point. Its diameter is reduced at its front end and it serves to draw the firing pin back into the face of the breechblock immediately after it has been driven forward by the blow of the hammer.
7 Extractor. This is a claw dovetailed into the top of the breechblock. It is of spring steel construction.
8 Locking block. It is slotted through its center and rests on a receiver projection directly below it. It is supported at its ends (at A and A) in projections on the sidewall of the receiver.
8-forward. The tooth marked "8" is a forward frontal projection of the Jock. It is engaged by A8, the rocker below it.
A8 Bolt rocker. During the recoiling action, this rocker pressing on the tooth of the bolt lock produces the action which draws the locking piece of the piece 8 down out of engagement to unlock the weapon.
9 Ejector. This is a projection on the receiver in this arm.
9 lower and rear. These points indicate projections on the left side of the receiver in which parts are housed.
11 Hammer axis pin.
20 Ribs at top edge of receiver in which barrel and breech mechanism slide.
21 and 22 Magazine follower and spring.
23 Magazine floor plate.
24 Magazine bottom attaching screw.
20 Parts of receiver.
A7 Mainspring and guide.
21 Stocks. These are removable and are attached by the only screw used" in the pistol.
The case is bottle-necked and rimless and positions on the shoulder in the chamber. The original muzzle velocity was about 1350 feet per second and with different loadings and different barrel lengths in modern ammunition it may run as high as 1475 feet per second. The breech pressure is extremely high for a pistol cartridge, being approximately 30,000 pounds per square inch. The cartridge has appeared with full patched bullets, soft nosed bullets and even hollow point bullets. Ammunition for this weapon was manufactured by all U. S. cartridge makers before World War II. The usual bullet weight is 85 grains with a cupra-nickel jacket.
Was this article helpful?