CA1147204A - Shot-loaded cartridge - Google Patents
Shot-loaded cartridgeInfo
- Publication number
- CA1147204A CA1147204A CA000377088A CA377088A CA1147204A CA 1147204 A CA1147204 A CA 1147204A CA 000377088 A CA000377088 A CA 000377088A CA 377088 A CA377088 A CA 377088A CA 1147204 A CA1147204 A CA 1147204A
- Authority
- CA
- Canada
- Prior art keywords
- shot
- capsule
- cylindrical
- cartridge
- rifle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B7/00—Shotgun ammunition
- F42B7/02—Cartridges, i.e. cases with propellant charge and missile
- F42B7/04—Cartridges, i.e. cases with propellant charge and missile of pellet type
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
This invention relates to a shot-loaded cartridge that can be fired from a conventional rifle without any modification to the rifle itself. The outer configuration of the cartridge case is unaltered, retaining its taper from its base to its shoulder and having a cylindrical neck portion. The bore of the case is cylindrical from its base to its open end to receive a cylindrical plastic capsule on top of the powder charge. This capsule contains the shot and is provided with a pop-off end seal. On firing, the side walls of the capsule peel back, the end seal pops off and the shot is released. The plastic capsule does not damage the rifling of the rifle barrel.
This invention relates to a shot-loaded cartridge that can be fired from a conventional rifle without any modification to the rifle itself. The outer configuration of the cartridge case is unaltered, retaining its taper from its base to its shoulder and having a cylindrical neck portion. The bore of the case is cylindrical from its base to its open end to receive a cylindrical plastic capsule on top of the powder charge. This capsule contains the shot and is provided with a pop-off end seal. On firing, the side walls of the capsule peel back, the end seal pops off and the shot is released. The plastic capsule does not damage the rifling of the rifle barrel.
Description
~47z~a~
This invention relates to a shot-loaded cartridge that can be fired from a conventional rifle without any modification to the rifle itself.
The outer configuration of the cartridge case is unaltered, still retaining its taper from its base to its shoulder. The bore of the cartridge case, however, is cylindrical from its base to its open end. The cartridge case is loaded by first putting in the powder charge and sealing it. A cylindrical plastic capsule containing the shot is inserted next and has its open end sealed by a pop-off seal.
The cartridge is now ready for firing. The plastic capsule peels back and the end seal pops off as the capsule leaves the muzzle of the rifle. The shot is propelled out in a spray pattern. The degree of divergence of the shot pellets is controlled by the proportion of powder weight to lead weight.
The cartridge is suitable for rifles with a .30 caliber bore or greater. By carrying both types of cartridges, the shot-loaded cartridge and the conven-tional solid projectile cartridge, the hunter is equipped for small game or large game with a single weapon.
Several firing tests have revealed this distribution of pellets at a distance of 25 feet. 60 to 70 pellets out of a total of 130 pellets were found uniformly distributed in a 1 ft. diameter circle, the remainder being confined to the concentric area between the 1 ft. diameter circle and a 2 ft. diameter circle. The degree of penetration at the distance of 25 feet was through a quarter inch of plywood.
Number 9 shot is the maximum usable for a .30 caliber rifle, w;th number 7 shot being used ~or larger calibers.
The invention will be further described with reference to the accompanying drawings wherein, - Figure 1 is a sectional view showing the construction of the cartridge, and Figure 2 shows the spray pattern of the shot after firing.
~.
11~721~4 As shown in Figure 1, cartridge case 1 is tapered externally from its base 2 to its shoulder portion 3 and is cylindrical in its neck portion 4. The bore 5 of the cartridge case is cylindrical from the base to the open end as defined by the neck portion.
Inside the bore is a powder chamber 6 and a powder chamber seal 7. The shot loaded capsule is shown at 8. End seal 9 closes off the open end of the capsule. Shot pellets 10 are thus enclosed in the capsule.
The spray pattern of the shot is shown in Figure 2. The side walls of the capsule peel back, the end seal pops off and the shot is released. Since only the plastic capsule travels up the barrel of the rifle there is no damage to the rifling of the barrel.
It should be noted that the open end of the neck of the cartridge case is lightly crimped over the end seal of the capsule. This crimping disappears after firing permitting reload and reuse of the cartridge cases several times.
It is thus seen that the versatility of an ordinary rifle is extended through the use of the shot-loaded cartridge as disclosed herein.
This invention relates to a shot-loaded cartridge that can be fired from a conventional rifle without any modification to the rifle itself.
The outer configuration of the cartridge case is unaltered, still retaining its taper from its base to its shoulder. The bore of the cartridge case, however, is cylindrical from its base to its open end. The cartridge case is loaded by first putting in the powder charge and sealing it. A cylindrical plastic capsule containing the shot is inserted next and has its open end sealed by a pop-off seal.
The cartridge is now ready for firing. The plastic capsule peels back and the end seal pops off as the capsule leaves the muzzle of the rifle. The shot is propelled out in a spray pattern. The degree of divergence of the shot pellets is controlled by the proportion of powder weight to lead weight.
The cartridge is suitable for rifles with a .30 caliber bore or greater. By carrying both types of cartridges, the shot-loaded cartridge and the conven-tional solid projectile cartridge, the hunter is equipped for small game or large game with a single weapon.
Several firing tests have revealed this distribution of pellets at a distance of 25 feet. 60 to 70 pellets out of a total of 130 pellets were found uniformly distributed in a 1 ft. diameter circle, the remainder being confined to the concentric area between the 1 ft. diameter circle and a 2 ft. diameter circle. The degree of penetration at the distance of 25 feet was through a quarter inch of plywood.
Number 9 shot is the maximum usable for a .30 caliber rifle, w;th number 7 shot being used ~or larger calibers.
The invention will be further described with reference to the accompanying drawings wherein, - Figure 1 is a sectional view showing the construction of the cartridge, and Figure 2 shows the spray pattern of the shot after firing.
~.
11~721~4 As shown in Figure 1, cartridge case 1 is tapered externally from its base 2 to its shoulder portion 3 and is cylindrical in its neck portion 4. The bore 5 of the cartridge case is cylindrical from the base to the open end as defined by the neck portion.
Inside the bore is a powder chamber 6 and a powder chamber seal 7. The shot loaded capsule is shown at 8. End seal 9 closes off the open end of the capsule. Shot pellets 10 are thus enclosed in the capsule.
The spray pattern of the shot is shown in Figure 2. The side walls of the capsule peel back, the end seal pops off and the shot is released. Since only the plastic capsule travels up the barrel of the rifle there is no damage to the rifling of the barrel.
It should be noted that the open end of the neck of the cartridge case is lightly crimped over the end seal of the capsule. This crimping disappears after firing permitting reload and reuse of the cartridge cases several times.
It is thus seen that the versatility of an ordinary rifle is extended through the use of the shot-loaded cartridge as disclosed herein.
Claims (2)
1. A shot-loaded cartridge comprising a tapered case, an inner powder charge, an inner capsule chamber, an open-ended shot capsule insertable in the capsule chamber, means to seal the open end of the capsule and means to seal off the powder charge from the capsule chamber and wherein the case is tapered externally from its base to a shoulder portion and is cylindrical in a neck portion.
2. The article of claim 1 wherein the bore of the case is cylindrical from its base to an open end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000377088A CA1147204A (en) | 1981-05-07 | 1981-05-07 | Shot-loaded cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000377088A CA1147204A (en) | 1981-05-07 | 1981-05-07 | Shot-loaded cartridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1147204A true CA1147204A (en) | 1983-05-31 |
Family
ID=4119906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000377088A Expired CA1147204A (en) | 1981-05-07 | 1981-05-07 | Shot-loaded cartridge |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1147204A (en) |
-
1981
- 1981-05-07 CA CA000377088A patent/CA1147204A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |