DE202004015192U1 - Lengthy dumdum bullet for high velocity rifled hand guns, has driving bands with smoothly-radiused recesses facilitating manufacture - Google Patents

Abstract

On the body of the bullet (1) radial recesses (4) without sharp edges, and preferably radiused (R), form driving bands (2). The external form is manufactured using a tool in a rotary machine.

Description

• –dass am Geschosskörper 01 nach 01 mehrere radial umlaufende Aussparungen 03 ohne scharfe Ecken, bevorzugt radienförmig R, zur Erzeugung von Führungsbändern 02, angebracht sind, die eine Herstellung der Geschossaussenform mit nur einem Drehwerkzeug auf einer Drehmaschine möglich machen.
• – dass am Geschosskörper 01 nach 01, speziell an der Geschossspitze, eine Bohrung angebracht ist die zum Schutz vor Verschmutzung mit einem Stück weichen Kunststoff 04, bevorzugt Silikon, verschlossen ist.

Oblong projectile 01 made of copper or a copper alloy, of circular section, for handguns with drawn barrels
characterized,

• -That on the projectile body 01 to 01 several radially circumferential recesses 03 without sharp corners, preferably radii R, for the production of guide strips 02 are mounted, which make possible a production of the projectile outer mold with only one turning tool on a lathe.
• - that on the projectile body 01 to 01 , especially on the bullet tip, a hole is attached to protect against contamination with a piece of soft plastic 04 , preferably silicone, is closed.

State of technology

• 1. Geschosse aus massiven Blei, welche gegebenenfalls auch beschichtet sein können
• 2. Geschosse, bestehend aus einem Bleikern, welcher mit einem dünnen Mantel aus Kupfer oder einer Kupferlegierung umhüllt ist
• 3. Geschosse aus massiven Kupfer oder Kupferlegierungen
• 4. Geschosse aus anderen Metalllegierungen oder Metallkombinationen

The following bullets for handguns are currently known and used for handguns:

• 1. bullets of solid lead, which may optionally also be coated
• 2. projectiles, consisting of a lead core, which is coated with a thin sheath of copper or a copper alloy
• 3rd floors of solid copper or copper alloys
• 4. bullets of other metal alloys or metal combinations

problem

modern Projectiles for Handguns are made with very high speed from weapon tubes Missed. Since the projectiles for the flight stabilization by the spin, a sprial-shaped shaping in the course, be put into a rotation about its own axis, act at the same time due to the high acceleration and the high speed of the projectile, tangential executives on the projectile.

Of the Angle of the spiral Expression can can not be reduced without the stable flight of the projectile negative to influence.

The management depth The tension field profile can not be increased because of the resistance when pressing the bullet into the gun barrel would greatly increase and to an uncontrollable gas pressure rise during propellant combustion to lead would the could blow up the barrel.

The only solution This problem was a projectile material to use which these high leaders can absorb while low Raw material costs.

at low bullet speeds up to approx. 400 m / s have lead exposed as the most suitable material.

at modern rifle bullets Up to a bullet speed of 1300 m / s have copper or copper alloys best proved.

To the large part there are projectiles for Handguns with a projectile speed of over 400 m / s from a lead core which with a coat of copper or a copper alloy is sheathed. These floors show through their high density very good flight characteristics. The coat with increased Strength takes over while the high level of leadership.

There Lead in the human and animal organism health damage cause even death can, Lawmakers use lead in many areas the technology ever further restricted and prohibited.

To prevent potential changes in the law, bullets were developed from solid copper or copper alloys, which are either pressed or machined. In order not to increase the insertion resistance of the projectiles unnecessarily, are radially circumferential recesses or grooves 03 worked on the projectile to adjust the leadership of the projectile to the executives occurring. These circumferential recesses are on lathes with a so-called mold or Abstechwerkzeug 04 to 02 attached and have a usually rectangular or trapezoidal shape, as in 02 will be shown.

at The cutting production is thus first the contour of the projectile with a usual Produced rotary tool and then with a second tool, the radial circumferential recesses are worked. That means in Manufacturing process a time-consuming tool change and thus connected higher Tolerances.

solution

This Problem is with the protection claim 1 listed features (possibly literal Citation of the features).

reached advantages

With The invention is achieved in that one the outer contour of a projectile with guide bands for handguns can manufacture with only one tool. This one achieves especially on computer-controlled machines maximum contour accuracy.

problem

Around in hunting bullets a better energy release in the game body too reach, a hole is placed in the nose of the projectile upon impact of the projectile on the game body expansion and thus causes a bullet diameter magnification and in consequence a higher one Gives off energy.

During the Production process are projectiles in so-called vibratory finishing machines polished. To achieve an economical polishing performance, used you very small granules that settle in the hollow top and it can clog up.

Also can other dirt particles during collect the use of the loaded ammunition in this hollow point and these clog.

Both cited Problems can have a negative impact on the expansion of the projectile.

was standing The technique is to make such tips with a solid element Plastic, preferably of the materials polyamide or polycarbonate to provide. However, such plastic elements delay due to their high hardness the expansion and prevent a maximum energy release in the game body.

solution

This Problem is with the protection claim 2 listed features (possibly literal Citation of the features).

reached advantages

With The invention is achieved in that one provided with a bore Bullet tip reliable protects against the ingress of dirt particles without the expansion properties to influence negatively.

description an embodiment

An embodiment of the invention is based on the 1 and 2 explained.

It demonstrate:

1 The projectile body 01 with his leadership bands 02 and the radially encircling, radii R recesses 03 ,

The hole in the bullet tip, which protects against contamination with a piece of soft plastic 04 , preferably silicone, is closed.

2 The projectile body 01 with his leadership bands 02 and the radially encircling, recesses 03 ,

01

Geschoss für Handfeuerwaffen nach Schutzanspruch 1)

02

Führungsbänder

03

radial umlaufende Aussparungen

04

Füllstück für Geschossspitzen nach Schutzanspruch 2)

Fig. 01

01

Missile for handguns for protection claim 1)

02

guide belts

03

radial circumferential recesses

04

Filling piece for projectile tips according to protection claim 2)

01

Geschoss für Handfeuerwaffen

02

Führungsbänder

03

radial umlaufende Aussparungen

04

Formwerkzeug / Abstechwerkzeug für Drehmaschinen

fig.02

01

Bullet for handguns

02

guide belts

03

radial circumferential recesses

04

Forming tool / parting tool for lathes

Claims (2)

Oblong projectile 01 consisting of copper or a copper alloy, of circular section, for small arms with drawn barrel, characterized in that on the projectile body 01 to 01 several radially circumferential recesses 03 without sharp corners, preferably radii R, for the production of guide strips 02 are mounted, which make possible a production of the projectile outer mold with only one turning tool on a lathe. Oblong projectile 01 consisting of copper or a copper alloy, of circular section, for small arms with drawn barrel, characterized in that on the projectile body 01 to 01 , especially on the bullet tip, a hole is attached to protect against contamination with a piece of soft plastic 04 , preferably silicone, is closed.