JPS6071900A - Feeder for charged gun forshotgun - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to feeding of ammunition for a shotgun used in a hunting rifle or the like.

Shotgun cartridges used for hunting and shooting competitions are loaded into a cartridge with a detonator in the order of gunpowder, feed, and a shot or one slug bullet from the bottom, and are muzzled.

By the way, shotguns fired from a shotgun fly towards the criminal without spreading out, so if they hit the target within the spread range, they will hit the target, so a shotgun is effective for shooting at moving targets. Therefore, shotguns are used for hunting flying birds and dynamic shooting such as trap and skeet shooting, but there are limits to the dispersion of currently available bullets, and even wider spreads are required for close-range shooting. It is preferable to use bullets that have the ability to spread over a wide range.

In addition, a shotgun may be used for hunting animals or for static shooting competitions by using a single bullet, that is, a slug bullet loaded with a slag instead of a shot.

The stability of the slug's flight attitude after ejection greatly affects its accuracy, so it is necessary to rotate the slug around its axis before injecting it.
An effective method is to use the gyro effect to stabilize the attitude during flight, but unlike rifles, shotguns do not have a rifling in their barrels, so it is impossible to rotate them at high speeds. Therefore, the accuracy of slug bullets is much lower than that of rifle bullets.

In view of the above-mentioned problems with conventional shotgun loads, it is an object of the present invention to rotate the parts constituting the cartridge by utilizing a part of the energy of the propellant used to fire the bullet. The dispersion performance of the bullet was improved, and the single-grain slug was rotated at high speed with the slug to improve accuracy. That is, it provides a special feed.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

Figure 1 shows a shotgun cartridge incorporating the feed of the present invention;
The figure shows slug loading. 1 is a medicine cartridge, 2 is a bottom tube, and a detonator is attached to the end face 3 of this bottom tube 2. Reference numeral 4 denotes explosives, 5 a gunpowder holder, and 6 a rotor, and the gunpowder holder 5 and rotor 6 form the feed of the present invention.

In the shotgun cartridge shown in FIG. 1, blades 7 are formed to protrude integrally with the rotor 6 in the axial direction, the periphery of the blades 7 is filled with shotguns 8, and the disc-shaped palate 9 is sealed with a mouth wrap 10. It has stopped.

In the slug bullet loading shown in FIG.
'Y loaded, and the structure is generally the same as that of the shotgun cartridge shown in FIG. 1, except that the rotor 6'C is provided with means for rotating the slug 11, which will be described later.

A specific structural example of the gunpowder suppressor 5 and rotor 6 that constitute the feeder of the present invention will be described below. First, in the first embodiment, the explosive suppressor 5 shown in FIGS. 3 and 4 is made of a flexible plastic material such as polyethylene, and the explosive suppressor 5 shown in FIGS.
The gunpowder suppressor 5 has a cylindrical shape with a recess 12 on the side facing the gunpowder holder 5, and a hole 13 that forms an inflow path for gunpowder gas passes through the axis of the gunpowder holder 5. Further, on the outer circumferential surface of the gunpowder retainer 5 on the side where the recess 12 is formed, a conical portion 14'lk that expands toward the outer circumference is provided, which tightly contacts the inner circumferential surface of the cartridge 1 and completely prevents leakage of gunpowder gas. It is shaped to be sealed. Incidentally, as shown in FIG. 19, the outer diameter of the gunpowder retainer U may be made approximately equal to the inner diameter of the gun case 1, and the conical portion 14Y may be omitted.

On the other hand, the rotor 6 is made of a material such as plastic with a small coefficient of friction and has a cylindrical shape of arbitrary length, and its outer diameter is smaller than the inner diameter of the cartridge 10, which is approximately equal to the inner diameter of the gun cavity.

As shown in FIGS. 5 to 7, the end surface 15 of the rotor 6 that is in contact with the end surface 21 of the gunpowder suppressor 5 has a constriction section 16a passing through the center of the rotor 6 to limit the amount of ventilation. At least one ventilation groove 16 is bored, and a plurality of injection grooves 17 are formed starting from both ends of this ventilation groove 16 and communicating therewith.
is provided in a predetermined direction, and the other end is provided with a rotor 6
It is open on the outer circumferential surface of.

Furthermore, as shown in FIG.
At least one protrusion ring or protrusion or a plurality of protrusions that come into contact with the inner circumferential surface of the cartridge 1 are integrally molded with the rotor 6. 5 to 7 show an example in which three blades 7 are each provided with the projections 18.

The feeding action of the combination of the gunpowder suppressor 5 shown in FIGS. 3 and 4 and the rotor 60 shown in FIGS. 5 to 7 will be described.

The gunpowder stopper 5 and the rotor 6 are loaded into the cartridge 1 with the end face 21 of the gunpowder stopper 5 and the end face 15 of the rotor 6 facing each other. In this state, when the gunpowder 4 detonates, the gunpowder suppressor 5, rotor 6, shot 8, and pallet 9 are pushed forward by the explosive pressure, release the muzzle IOY, enter the gun cavity, and rapidly increase the speed. is ejected.

Since the end surface 21 of the explosive suppressor 5 that is pressed by the explosive pressure is crimped to the end surface 15 of the rotor 6, the ventilation groove 16 and the injection groove 17 form a gas passage with a closed cross section, and the ventilation groove 16 is connected to the explosive suppressor 5.
The gunpowder gas flowing into the hole 13 is injected from the outer peripheral surface of the rotor 6 into the gap I shown in FIG. 1 through the ventilation groove 16 and the injection groove 17. The reaction force of the adiabatic expansion caused by this gas injection acts on the starting point n of the injection groove 17, and the sixth
As shown in the figure, the thrust force t1 is opposite in direction and equal in magnitude,
A torque is generated due to t2, and the rotor 6 passes through the gun cavity without rotating. Further, the gunpowder gas injected into the gap (A) flows from the front end surface 19 of the rotor 6 shown in FIG.
It blows away and is ejected through the gun cavity.

As the rotor rotates 60 times, the blades integrally formed with the rotor 6 rotate 70 times, and the loaded shot 8 increases its speed while rotating around the axis of the gun cavity, and reaches the muzzle. Due to the inertia of the whirling motion, they are ejected while spreading out in the tangential direction of the whirling.

A second embodiment of the feed of the present invention is based on the explosive suppressor 5 shown in FIG.
As shown in FIG. 8, the gunpowder suppressor 5cL is provided with an annular groove and a communication groove 24 connecting the annular groove and the hole 13 on the end surface 21 of the rotor 6, as shown in FIG. 15 is combined with a rotor 6α provided with an air guide groove 5 and a plurality of pairs of injection grooves 17α communicating with the air guide groove 6, as shown in FIG. The communication groove U is a curved or straight groove, and the communicating hole 13
It branches off in a predetermined direction, the end of which is connected to the annular groove. Further, the air guide groove 5 has a function as a throttle passage that limits the amount of airflow, and has a starting point on a virtual circle having the same diameter as the inner circle of the annular groove n, and its terminal point is The injection groove 17α communicates with the injection groove 171, and the other end of the injection groove 17α opens on the outer peripheral surface of the rotor 6a.

The operation of this second embodiment is as follows. By detonation of the gunpowder, the end face 21 of the gunpowder suppressor 5α and the end face 15 of the rotor 6 are pressed together, and a gas passage is formed.

Therefore, the high-pressure gas flowing into the hole 13 of the gunpowder retainer 5α enters the annular groove in the direction determined by the connecting groove, and becomes a gas flow that circulates within the annular groove in the direction of the arrow at high speed. The circulation direction of this gas flow is clockwise when viewed from the gunpowder 4 side, and since the annular groove % and the air guide groove 5 of the rotor 6α are in communication, the circulating gas flow is passed through the air guide groove 5 at high speed. The flow direction suddenly changes at the starting point (2) of the injection groove 17α communicating with the air guide groove 5, enters the injection groove 17α, and is injected from the opening into the gap shown in FIG.

The impulse force when this gas flow changes the flow direction Z at the starting point nα and the reaction force of adiabatic expansion due to injection are both the thrust force T1. T2 is applied to the rotor 6a, and a larger torque than that in the first embodiment is generated.
α rotates at a higher speed in the clockwise direction when viewed from the gunpowder 4 side.

However, the reaction force due to the gas flow in the pronation of the connecting groove is 5 g suppressed by explosives.
Since this acts as a torque in the opposite direction to the gas circulation direction, the gunpowder suppressor 5a tends to rotate freely in the opposite direction. Therefore, the depth of the recess 12 (shown in FIG. 3) provided on the opposite side of the end surface 21 where the connecting groove row etc. are provided is increased so that the outer peripheral part of the explosive suppressor 5α is The design increases the area that is inflated and crimped on the inner surface of the gun cavity to create the rotational resistance necessary to prevent free rotation.

In addition, since the gunpowder gas filling the annular groove of the gunpowder holder 5α is at extremely high pressure, a very small amount of high-pressure gas flows between the respective end faces 21 and 150 where the gunpowder holder 5a and the rotor 6α are pressed against each other. invade. Due to the pressure of this intruding gas, the rotor 6α tends to be slightly separated from the explosive suppressor 51, and the rotational frictional resistance generated between both end surfaces 4.150 is extremely small and does not impede the rotation of the rotor 6α.

The gunpowder suppressor 5A shown in FIG. 9 is the gunpowder suppressor 5α shown in FIG.
This is an example of a design change, with multiple gas inflow holes parallel to the axis 1
3g't- are provided, and these gas inflow holes 13αt are communicated with each communication groove row. This gunpowder suppressor 5h is also used in combination with the rotor 6α shown in FIG. 10, and its operation is similar to that of the second embodiment.

Next, a third embodiment will be described. Figures 11 and 12
As shown in the figure, an annular gas guide path 26Y having a diameter larger than that of the hole 13g is provided on the rotor side end surface 21 of the gunpowder suppressor 5c, and from this gas guide path, a communication groove array α similar to that shown in FIG. 8 is formed in advance. It has a structure that branches in a predetermined direction.

In addition, as shown in Fig. 13 and Fig. 14, rotor fraud is caused by
An annular groove 27 concentric with the axis is provided on the end face 15, and this annular groove n communicates with an air guide groove 6 having the same structure as that shown in FIG. The ends of the connecting groove steel are positioned on an imaginary circle having the same diameter as the outer circle of the annular groove n. Also, the rotor 6'
A plurality of protrusions 18α having the same function as the protrusions 18 in FIG. 5 are provided on the front end surface 19 side of the outer peripheral surface of c.

As shown in FIGS. 16 and 17, the slug 11 to be combined with the rotor 6'C is integrally formed with a substantially hemispherical head and a cylindrical body, and the outer diameter of the body is As shown in Figure 2, it has a smaller diameter than the cartridge 1 and the barrel constriction part, and a hollow passage is provided in the barrel. On the end face of the body opposite to the head, protrusions 4 and additions protrude on the same radius and at equal intervals, and the apex surfaces 31 of these protrusions 4 and additions extend in the direction of the arrow as shown in FIG. A tapered surface is formed whose height decreases in the direction of rotation of the slag.

On the other hand, the end surface 19 of the rotor 6z has a shape shown in FIGS.
As shown in Figure 5, the groove 32 is provided on the same radius.

Furthermore, a shaft is integrally provided at the center of the end face 15 of the rotor 6'C to be inserted into the first hole of the gunpowder suppressor 5C. This axis M is connected to the end face 21 of the gunpowder suppressor 5c and the rotor 6.
When the end face 15 of 'C' is crimped, the hole 1 of the shaft is formed so that a gap is created between the shaft and the hole 1 to form a gas passage.
The cross-sectional area of the portion facing the shaft is made smaller than the area of the hole 13a, and in this embodiment, as shown in FIG. 14, the cross-sectional shape of the shaft hole is a regular quadrangle inscribed in the hole 13α.

Further, a truncated conical stopper is formed at the tip of the shaft U. The diameter of this stopper is shown in Figures 11 and 12.
It is larger than the diameter of the gas guideway station of the explosive suppressor 5C shown in the figure. Therefore, as shown in Fig. 2, the gunpowder suppressor 5C
The rotor 6'c and the rotor 6'c are locked with a distance S between them by a strutscher.

A design modification example of the third embodiment will be explained with reference to FIG. 19.

The gunpowder suppressor 5d eliminates the conical part 14 shown in Fig. 11,
Its outer diameter is approximately equal to the inner diameter of cartridge 1. Further, the hole 13 is formed into a stopper 37' made of a coating having a thickness having a breaking strength necessary for the gunpowder side opening.

On the other hand, the shaft protruding from the center of the end surface 15 of the rotor 6'd has a structure in which the conical stopper in FIG. End face 21.150 with rotor 6'd
A gap of 8 is maintained between the facing surfaces.

In addition, the rotor 6 is buried in a disk 36Y made of a highly rigid metal within a wall thickness of 6t, and the rotor 6'C16'd is
Reinforced to prevent deformation.

The operation of the third embodiment shown in FIGS. 11 to 19 and its design changes will be explained with reference to FIG. 2.

Immediately after the gunpowder is detonated, the gunpowder suppressors 5c and 5d try to push the slag 1lt out of the cartridge 1 with the front end surface 19 of the gunpowder suppressor 5c and 5d, but the mouthpiece 9 and the mouthpiece 1
Since the opening of cartridge 1 is sealed by 0,
The rotor 6'C1 does not move.

Therefore, in the cases shown in Figures 11 to 15 due to the increase in explosive pressure, one hole of the highly flexible gunpowder suppressor 5C expands and the stopper
35Y, and its end surface 21 is the end surface 15 of the rotor 6'c.
Crimp. In the case of FIG. 19, the stopper 37 of the coating is broken and the end surfaces 21 and 15 are pressed together in the same manner as described above.

At the beginning of this explosion, the gunpowder suppressors 5c and 5d reduce the sudden rise shown in Figure 2, lowering the peak value of the cavity pressure and increasing safety, while also changing the quality of the recoil felt by the shooter's shoulder and reducing unpleasant recoil. It reduces the feeling of

Due to the subsequent increase in explosive pressure, mouth wrap 10 is released and hole 1
The gunpowder gas that has flowed into the gap between 3α and the shaft A passes through the gas guiding path section and the communication groove Saeα, enters the annular groove n provided in the rotor 6'c and 5Q, and circulates the gas in the direction of the arrow. It becomes a flow,
The air enters the air guide groove 5, changes its direction, and is injected from the injection groove 17g into the gap shown in FIG. 2, and the exhaust gas is discharged into the gun cavity through the gap shown in FIG. That is, rotor 6/c, 6
As in the second embodiment, the /d moves inside the gun cavity without rotating.

Due to the rotation of this rotor 6'C163, the protrusion 4,
The rotation is transmitted to the engaged slug 11, and the slug 11 is ejected through the gun cavity while rotating. Furthermore, since the slug 11 is made of metal, it is harder than the rotors 6z and 6, which are made of plastic. Then, due to the explosive pressure, the rotor 6
Since the grooves 32 and 5d are strongly pressed against the slug 11, the grooves 32 and 33 are omitted and the protrusions 4 and 5 of the slug 11 are omitted.
(9) bites into the end faces 19 of the rotors 6z and 6Q and becomes engaged, allowing transmission of rotation. However, in this case, in order to position the center of the slug 11 at the center of the rotor, as shown in FIG. 4, for example, as shown in FIG. Consideration must be given, such as providing it on the slag side.

A shotgun has a choke barrel with a constricted barrel near the muzzle, but when the rotor passes through such a barrel, the protrusion 1 hook receives frictional resistance at the constricted part of the barrel. , its advancing speed and rotational speed decrease. However, slag 1
Since the apex surface 31 of protrusion 4 (9) of 1 is tapered,
At the moment when the rotor 6'd advances and its rotational speed decreases, the slug 11 separates from the rotor 6'd, passes through the gun cavity and is ejected without contacting the barrel constriction part. Ru. In other words, a slug bullet loaded with feed T, in which the rotor and the slug are engaged in a concave-convex manner by a tapered protrusion that functions as a one-way clutch, exhibits extremely high accuracy without being affected by the constriction of the barrel.

In each of the above embodiments, as a rotation transmission means, a blade 7t1 is used for shot bullet loading, and a protrusion 4 that engages with a convexity is used for slug loading.
(9) By providing the concave groove in the 33-inch rotor 6'C16-, it can be applied to any purpose and various other applications are possible. An example thereof will be explained as a fourth embodiment with reference to FIGS.

The rotor 6- has a truncated cone-shaped cylindrical portion opening at its front end surface 19, and a plurality of long protrusions 39 in the axial direction of the outer circumferential surface. In addition, on the bottom surface 19α between the cylindrical parts, the protrusion
The apex surface 31 of the same shape as I is a tenon-shaped protrusion 4α, (9
) α are protruded on the same radius and at equal intervals.

The slug row 1α combined with this rotor 67e is the slug 1
1, but the rotor 6- is replaced with the protrusion 4 and the addition.
A hole 32α and a wing α into which the projections 4α and Iα fit are provided. Note that the above-mentioned protrusion 39 may be inclined instead of being parallel to the axis of the rotor 6'g, and since this protrusion 4 is inscribed in the inner surface of the gun cavity and is ejected, the axis of the slug l1g is also aligned with the axis of the gun cavity. It has the advantage of increasing accuracy as it is fired in perfect agreement with the target. This rotor 6- is used in combination with the explosive suppressor 5 of the first embodiment, and its rotation and the action of the one-way clutch are as described above.

As described above, the feeding of a shotgun bullet according to the present invention is to obtain a forced dispersion in which the shotgun is rotated and then ejected from the muzzle. Not only does it produce an extremely wide bullet hole pattern when fired, but it also has the effect of making the bullet hole distribution uniform, and when loading slug bullets, it has the effect of increasing accuracy due to the high speed rotation of the slug. .

[Brief explanation of the drawing]

Fig. 1 is a partial sectional view of a shot charge incorporating the feed of the present invention, Fig. 2 is a partial sectional view of a slug charge incorporating the feed of the present invention, and Fig. 3 is a configuration of the feed of the present invention. Figure 4 is a side view of the gunpowder suppressor, Figure 4 is a right side view, Figure 5 is a side view of the rotor for shotgun ammunition, Figure 1lIE6 is a left side view, Figure 7 is a right side view, and Figure 8 is a side view of the powder suppressor. 9 is a right end view showing an example of a change in the design of the gunpowder suppressor shown in FIG. 8; FIG. The left end view of the rotor shown in Fig. 11 shows the third gunpowder suppressor.
A side view showing the embodiment, FIG. 12 is a right side end view of the same, and FIG.
The figure is a side view of the rotor for slug loading, and Figure 14 is the 13th
15 is a right end view of the rotor shown in FIG. 13, FIG. 16 is a side view of the slag, FIG. 17 is a left end view of the same, and FIG. FIG. 19 is a sectional view showing a modified example of the design of the gunpowder suppressor and rotor shown in FIGS. 11 to 15, FIG. 1 is an end view showing another embodiment of the rotor, and FIG. It is a sectional view taken along the line B-B in FIG. 1...Medicine, 4...Gunpowder, 5.5α, 5b, 5
C, 5d... Gunpowder suppressor, 6.6α, 6'C162,6
-...Rotor, 7...Blade, 8.Life/Scattered bullet, 9...
・Palate, 10.Self-mouth roll, 11.11ae...Slug, 12.Fist/concavity, 13.13α...Hole, 14...
Conical part, 15... End face, 16... Ventilation groove, 16
a... Throttle part 17.17α... Injection groove, 19...
・End surface, machining・φ・gap, 21...end surface, n, 22αe
**Origin point, 蓼・11-field groove, Sae, Sae αee・Communication groove,
5・ee air guide groove, base...gas guideway, 27 fist...annular groove, 28@...cavity, 4, I...protrusion, 31・111
1 apex surface, 32.33 -- concave groove, ah, 34α00. Axis, a00. Stopper, A001 Disk, 37---Stopper, A06. Cylindrical portion, 39-, protrusion. Fig. 8 Fig. 9 Fig. 10 Fig. 11 Fig. 12 Fig. 13 Fig. 14 Fig. 15 Fig. October 1980 Shio f1 Co. Commissioner of the Patent Office Kazuo Wakasugi 1, Indication of the case 1988 Patent Application No. 178096 2, Title of the invention: Feeding of ammunition for shotguns 3, Relationship with the amended person case Patent Applicant 4, Agent 5, Date of amendment order 6, Number of inventions increased by the amendment 7, Claims column of the specification subject to amendment 8 Contents of the amendment Full text of the claims after the amendment as shown in the attached sheet A document describing the It consists of a cylindrical gunpowder suppressor that can slide and rotate, and a cylindrical rotor.
The gunpowder holder that is in contact with the gunpowder has at least one hole forming a gunpowder gas passage, and a plurality of gas injection grooves are predefined on the end face of the rotor on the gunpowder holder side at positions away from its axis. The ends of the gas injection grooves are opened in the outer circumferential surface of the rotor, and the other ends are connected to holes formed in the explosive holder, either directly or through a groove provided on the rotor-side end face of the explosive holder. The rotor has at least one protrusion or protrusion ring or a plurality of protrusions that have a diameter larger than the outer circumferential surface radius and protrude in the radial direction, and are connected to the grooves that communicate with each other, and the rotor has at least one protrusion or protrusion ring or a plurality of protrusions that have a diameter larger than the radius of the outer peripheral surface of the rotor, and a plurality of protrusions for transmitting the rotation of the rotor to the bullet. A method for feeding a shotgun bullet, comprising: a rotation transmission means. (1) 12) The shotgun according to claim 1, wherein at least one groove communicating with the hole forming the gas passage and facing in a predetermined direction is provided on the rotor side end surface of the gunpowder suppressor. Delivery of ammunition. 13) The rotor side end face of the gunpowder suppressor has a groove communicating with the hole forming the gas passage, and an annular groove connected to the groove and located on the same radius of the axis. Feeding the shotgun ammunition described in item 1. (4) A shotgun according to claim 1, wherein an annular groove is provided on the gunpowder side end face of the rotor, communicating with the groove connected to the gas injection groove and located on the same radius of the axis. Sending ammunition. (5) The feeding of a shotgun bullet according to claim 1, wherein at least one blade is provided in the axial direction on the end surface of the rotor on the bullet side. (6) The feed of a shotgun bullet according to claim 1, wherein at least one protrusion is provided on the end surface of the rotor on the bullet side. (7) The feed of a shotgun bullet according to claim 1, wherein a concave portion concentric with the axis is provided on the end surface of the rotor on the bullet side. (8) The feeding of a shotgun bullet according to claim 1, wherein a disk-shaped reinforcing member concentric with the axis is embedded in the middle of both end faces of the rotor. (9) The end surface axis of the rotor on the gunpowder holder side is provided with an axis having a cross-sectional area smaller than the cross-sectional area of the hole forming the gas passage of the gunpowder holder. Send. 1101 A shaft with a cross-sectional area smaller than the cross-sectional area of the hole forming the gas passage for the explosive suppressor is provided at the axis of the end face of the rotor on the explosive suppressor side, and a shaft for forming the gas passage for the explosive suppressor is provided at the tip of this shaft. 2. A feeder for feeding a shotgun bullet according to claim 1, wherein a projecting ring or at least one protrusion having a diameter larger than the diameter is formed. (lυ) The feeding of shotgun ammunition according to claim m1, wherein all or part of the gunpowder side opening of the hole forming the gas passage of the gunpowder stopper is covered with a member integrally formed with the gunpowder stopper.

Claims (9)

[Claims] (1) In a shotgun cartridge in which a cartridge with a detonator is loaded in the order of gunpowder, feed and bullet from the bottom of the bullet and a muzzle is applied,
At least the gunpowder holder that is in contact with the gunpowder comprises a cylindrical gunpowder holder and a cylindrical rotor, each having end surfaces facing each other at right angles to the axis of the ammunition and capable of sliding rotation relative to each other. The rotor has a hole forming one gunpowder gas passage, and a plurality of gas injection grooves are provided in a predetermined direction at positions away from the axis on the end face of the rotor on the gunpowder suppressing side, and the ends of the gas injection grooves is opened on the outer circumferential surface of the rotor, and the other end is connected to a groove that communicates with the hole formed in the explosive holder, either directly or through a groove provided on the rotor side end face of the explosive holder, and the rotor has a A diameter larger than the radius of the outer circumferential surface and a small diameter protruding in the radial direction (both 1
A method for feeding a shotgun bullet, characterized in that it comprises one protrusion, a protrusion ring, or a plurality of protrusions, and a rotation transmission means for transmitting the rotation of the rotor to the bullet. (2) A shotgun according to claim 1, wherein at least one groove is provided on the end surface of the gunpowder holder on the rotor side, which communicates with the hole forming the gas passage and faces in a predetermined direction. Sending ammunition. (3) The scope of the present invention includes, on the rotor side end face of the gunpowder holder, a groove communicating with the hole forming the gas passage, and an annular groove connected to the groove and located on the same radius of the axis. Feeding the shotgun ammunition described in paragraph 1. (4) One annular groove connected to the gas injection groove and connected to the gas injection groove on the same radius of the axis on the end face of the rotor on the explosive side! Feeding a shotgun charge according to claim 1. (5) The feeding of a shotgun bullet according to claim 1, wherein at least one blade is provided in the axial direction on the end surface of the rotor on the bullet side. (6) The feeding of a shotgun bullet according to claim 1, wherein at least one protrusion is provided on the end face of the rotor on the bullet side. (7) The feeding of a shotgun bullet according to claim 1, wherein a concave portion is provided on the end surface of the rotor on the bullet side, which is concentric with the axis. (8) The feed of a shotgun bullet according to claim 1, wherein a disk-shaped reinforcing member concentric with the axis is embedded in the middle of both end faces of the rotor. (9) The shotgun cartridge according to claim 1, wherein a shaft having a cross-sectional area smaller than the cross-sectional area of the hole forming the gas passage of the gunpowder holder is provided at the axis of the end face of the rotor on the gunpowder holder side. Send. A shaft with a cross-sectional area smaller than the cross-sectional area of the hole that forms the gas passage for the gunpowder holder is provided at the center of the end face of the rotor on the explosive holder side, and a large shaft is provided at the tip of this shaft to form the gas passage for the explosive holder. A ring or at least one protrusion with a diameter larger than the diameter! Feeding a shotgun charge according to claim 1. (2) The feeding of a shotgun bullet according to claim 1, wherein all or part of the gunpowder side opening of the hole forming the gas passage of the gunpowder stopper is covered with a member integrally formed with the gunpowder stopper.