DE19936485A1 - Power stop deformation projectile e.g. bullet for pistols, consists of alloy with oval or flat tip, inner and outer sections, and hollow base - Google Patents

Abstract

A power stop deformation projectile, e.g. for revolvers, consists of an alloy and outer and inner projectile sections. The projectile tip can be oval or flat headed, and can have a hollow base which increases in cross section towards the tip.

Description

The invention relates to a deformation floor

Title / designation: Deformation floor / projectile

Projectile-specific projectile projectile for the special Use of authorities and defense.

Field of application of the invention

Handguns such as revolvers, self-loading pistols and MP's (e.g. Uzi).

Field of application: hostage taking, closed rooms (elevated cross racket risk), oil rigs, ships, larger industrial plants. Use in large crowds around the general hazard to minimize or to switch off one immediately hostile subject.

Projectile description

The subject of the patent is one of a kind metal alloy, preferably a copper-zinc alloy with high copper content, by machining processes (turning) manufactured projectile preferably for handgun ammunition in Calibres over 6 and under 12 mm.

The outer contour consists of a cylindrical and an ogival rounded part, these are coaxial to each other, the ogive forms the tip and the contour at the tip and the opposite directed part is flat. In one embodiment variant, the Flattened tip, sharpened more in another variant, to get special properties.

The inside of the projectile is a specially shaped, designed rotationally symmetrical hollow floor. The recess in Floor extends radially towards the top of the floor, so that there is a frustoconical cavity inside the Projectiles forms, with the narrower diameter on the projectile floor is lying. At the radially furthest part of the cavity is a cavity in the middle, which results from the tool shape or a production-technical necessity (centering depression) results.  

When hitting a target medium, this projectile deforms, because the bullet tail due to its inertia emerges thin-walled central area of the projectile, which points forms a belt-shaped bulge of the projectile. If the target media is hard, the projectile will immediately return to its Recalibrated original parameters or the resulting "belt" shears off. This radial bulge is used for soft target media or cross-sectional enlargement on the one hand to reduce the Cross-sectional load, it also serves as a tear-off edge for the resulting flow. This results in a drastic increase in Drag coefficients, from which a high flow resistance, a quick loss of speed and therefore a quick one Energy delivery and low penetration in soft targets result.

The projectile remains splinter-free in its mass, as does its center of gravity, which also results in its path accuracy in soft target media. This results in a target media-specific deformation behavior:
the powerstop literally "sticks" to impenetrable targets without splintering.

In soft targets, the cross-sectional enlargement causes connection with the resulting "stall edge" a massive one Loss of speed and thus energy delivery.

This bead also arises at hard targets, but it shears immediately and the floor sets its course as something relieved, hard "quasi full-shell bullet".

Criticism and general state of the art

Previous projectiles are usually bullet bullets with lead fillings, therefore expansion due to inertia over the rear is possible with high chipping. Relatively high scatter due to unbalance Swirl due to inaccurate mass distribution of the lead fillings. Penetration too high in soft targets and strong drift for materials still to be penetrated, from the target course.

No hollow floors and therefore no floor adaptation in the barrel, this causes gas slip and a reduction in airspeed.

The aim of the invention was

• - Risk of ricochets to be greatly reduced
• - Highest probability of being hit even when fired at ricaded enemy through cover (car doors etc.)
• - no splinter tax (99% preservation of projectile mass)
• - Larger bullet wound to turn off the hostile subject
• - high man-stop effect
• - low back-end danger

Features of the invention

Consisting of a special tombac alloy (2 variants: Cu Zn 5 and Cu Zn 10) as a full storey with an ogival point and a pronounced hollow floor. The main difference is the shape of the hollow floor.

Advantage: Deformation is initiated from the rear (by inertia not by hydrodynamically generated Pressure in the top of the floor). The special profiled hollow Soil creates a conveniently heavy weight point and thus results in an additional gas pressure reducing Internal volume of the fully loaded cartridge. This cavity in the area of the guide part reduces radial rigidity and acts so inflated and the passage resistance. Furthermore, by the possible Internal pressurization with propellant gases will be a good one Sealing of the projectiles achieved, this allows a good one Adaptation to the inside profile of the barrel. The gas slip is there minimized without the risk of Gas pressure peaks due to (too) high injection or running through gearing resistance. Because of that compared to conventional Core-shell projectiles result in low projectile weight a lower cross-sectional load, which is the maximum realm widely reduced.

The pronounced hollow floor creates a relatively large powder volume in the sleeve, what an increase in blowing charge can be used as well as for lowering the Peak gas pressure.

The advantage of the invention is the sum of these properties. They mean a maximum of hit accuracy for the shooter probability and a minimum of danger to the environment.

research Current patents and utility models are similar Pursued goals

Patent specification DE 39 91 343 C1
Utility model DE 295 10 977 U1
Utility model G 93 11 349.8 (roll number)
Disclosure DE 197 11 344 A1
Disclosure DE 40 12 575 A1
Disclosure DE 44 35 859 A1
Find it under IPC: F 42 B 12/34

Claims (1)

"Power Stop" deformation projectile for handguns consists of the combination of material (tombac alloy) and the outer and inner projectile shape with the options:
Ogival tip and hollow bathing (pistol variant) or flat head and hollow bottom (Revolvervaiante). In particular the hollow floor, which increases in cross section towards the front (in the direction of flight). This bullet shape is proportionally constant for all calibers.