DE202010010181U1 - Projectile with a hollow point - Google Patents

Abstract

Projectile with a Geschoßbug and a projectile tail, wherein the Geschoßbug is formed as a hollow point with an axial blind hole, characterized in that around the bottom (5) of the blind hole (3) in the projectile peripheral wall (6) an annular groove (4) is arranged.

Description

The The invention relates to a projectile with a hollow tip after the preamble of claim 1.

Around sufficiently injurious shellfree unleaded for hunting To produce projectiles, other materials had to, too harder and more brittle than lead, so designed that the projectiles in the soft target a larger one Cross section as in flight through the air. The current state non-sheathed lead-free partial decomposition bullets has certain similarities on, namely hollow tips.

The font DE 35 10 343 A1 calls a coatless preferably made of Tombak lead-free and plastic-free hunting projectile with a hollow point forming blind hole, which is closed by the metal wedge with a cam to score the hollow point inside, so to form flags that increase the cross section in the target to the required level.

The font DE 295 16 889 U1 calls a non-sheathed unleaded over-caliber rifle bullet made of mild steel.

The font DE 203 17 717 U1 calls a non-shod, low-friction full-length full-length guidebook made of non-ferrous metal with a hollow point and possibly an aerodynamic plug in the blind hole.

The font DE 103 17 404 A1 calls a pair of shellless hunting bullets of the same flight characteristics as a copper-zinc alloy hollow point bullet with cap, on the one hand designed as a subdivider and on the other hand as a deformer.

adversely in the prior art is the insufficient adaptation of the proposed drafts to the ones used Materials considering both simple production as well as adequate but not excessive Effect on all reasonably to be considered occurring Speeds and target resistances.

In writing DE 35 10 343 A1 Only an additional wedge cam must scratch the projectile hollow tip, so that the hydrodynamic dynamic pressure in the soft target opens this for the required cross-section. Without the wedge cam, the shape and material are therefore poorly matched to target speeds and resistances.

Projectiles according to script DE 203 17 717 U1 give only completely satisfactory results from copper. The material can only be moderately machined. Hollow-pointed bullets of brass that are easy to cut result in unsatisfactory break edges at the hollow point, which has been chipped off as intended, which impair the directional stability in the target.

That in writing DE 103 17 404 A1 said projectile pair does not meet the self-imposed goals insofar as the Deformatorausführung of the tougher copper-zinc alloy at usual target speeds, instead of only deform, also partially decomposed, so can recognize the intended Teilteilleger from brittle copper-zinc alloy little difference.

The Previous physical shape-to-material-to-velocity-to-target resistance relationships satisfy the requirements of simple production of a few Sharing and cheap manufacturing at low cost with high Tool life not. In particular, the known Hohlspitzgeschoßentwürfe fail for brittle materials created for machining like "automatic brass," but if sufficient, but not over action all reasonably observable occurring speeds and target resistors is sought, so a unit projectile for all occasions instead of many different special bullets for every other opportunity for a cheap production preferably to be used.

task The invention is a bullet with an improved To create a hollow point.

The Problem is solved with the features of claim 1, advantageous developments are characterized in subclaims.

According to the invention was recognized that projectiles made of brittle materials like brass, which have a hollow tip, a Zerlegeverhalten show, which prevents a directionally stable penetration of the target. On the one hand, this leads to dangerous deviations in the direction and can lead to such Projectiles end up endangering the hinterland. In addition, unsatisfactory, if such bullets by a deviation destroying valuable venison from the intended path at the finish.

According to the projectile is also made of brittle metals or their alloys, such. As "automatic brass", designed so that the projectile hollow tip of the projectile splits in a wide speed and soft target area, but the splitting is nevertheless terminated controlled. According to the invention fractures are delivered to the projectile residual bolt, which receive its directional stability in the soft target. Such fractures after splitting the hollow tip on the remaining bow of the projectile residual bolt should be a hydrodynamic Shoulder stabilization in the soft target enable breaking shape, preferably resemble the isobars of a flow on a plate. For this purpose, a controlled fragmentation according to the invention is achieved in that defined on the floor of the place where the fragments break off the projectile.

According to the invention the projectile outer wall coaxially around the blind hole bottom an annular groove, preferably as a sharp-edged V-shaped Puncture, up.

When debilitating breaking point leads them according to the invention Splintering of the demolition torn hollow point splitter exactly in the right place, even if the material is brittle is. This achieves a well-defined residual pin shape, the prerequisite for a directionally stable penetration of the goal is indispensable.

The Invention allows despite chipper optimized brittle Materials thus splitting the projectile hollow tip determine that the residual bolt remains sufficiently flat at the front, in the soft target flow, the target shoulder stabilized continue to penetrate straight in the weft direction. Only like that All requirements for best accuracy can be reduced Production, both of the material costs, as well as high forming capacity, with indispensable demands on the target ballistics agree.

The The invention will be explained by way of example with reference to a drawing. Showing:

1 : a projectile with hollow tip according to the invention cut along the axis of rotation;

2 a hollow tip cap to be inserted on the hollow point projectile cut as a prior art along the axis of rotation;

3 : a streamlined projectile assembled from a projectile with hollow tip according to the invention and a cap concealing the hollow tip (prior art) cut along the axis of rotation.

The rotationally symmetrical projectile consists of a tail 1 and a bug 2 , with the blind hole coaxial with the axis of rotation 3 is designed as a hollow point. The prior art may be followed by a streamlined cap with the tip 7 and the shaft 8th in the blind hole 3 be inserted. Coaxial around the blind hole bottom 5 is in the projectile perimeter wall 6 a V-shaped ring groove 4 appropriate.

at The invention is advantageous in that the projectile hollow tip also with production-favorable material choice from all brittle "automatic materials" at one exactly before certain place breaks away so in splinters that the Fracture surface similar to the isobars of a flow on a plate fails, that the remaining Projectile residual bolt the soft target hydrodynamically shoulder stable just penetrates in the weft direction

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 3510343 A1 [0003, 0008]
• - DE 29516889 U1 [0004]
• - DE 20317717 U1 [0005, 0009]
• DE 10317404 A1 [0006, 0010]

Claims (6)

Projectile with a projectile bow and a projectile tail, wherein the projectile bow is formed as a hollow point with an axial blind hole, characterized in that around the bottom ( 5 ) of the blind hole ( 3 ) in the projectile peripheral wall ( 6 ) an annular groove ( 4 ) is arranged. Projectile according to claim 1, characterized that the annular groove is V-shaped. A projectile according to claim 1 or 2, characterized characterized in that the projectile is made of brass, bronze, Mild steel or other brittle metals or metal alloys is trained. A projectile according to one of the preceding claims, characterized in that the projectile friction reducing Owns coating. Projectile according to Claim 4, characterized that the coating is a metallic coating or is an organic coating containing MoS. Projectile according to one of the preceding claims, characterized in that the blind bore ( 3 ) Has axial cracks or notches as axial predetermined breaking points for the fragmentation.