DE1578103A1 - Practice ammunition - Google Patents

Description

DYKAMIT NOBBL AKTIENGESELLSCHAFT Troisdorf, District Cologne

Practice ammunition

- The main patent (German patent application D 47 391 Ic /? 1d) concerned sie: with a practice ammunition, with which the same as with the corresponding Live ammunition trained projectile is provided with a continuous central axial bore. With the aim of this measure is to reduce the storey cross-section, so that only one of the reduced storey cross-section A corresponding proportion of the propellant powder energy is used and a short-flying projectile is obtained accordingly.

In the main patent it is stated that it can be done by appropriately dimensioning the clear cross-section of the projectile bore has the ability to vary the projectile flight range within relatively wide limits. Of course it is possible also about the ratio of the clear cross-section of the bullet bore to the bullet caliber of about 1: 3 given there go out, for example up to about a ratio. of 1: 2, which further reduces the projectile flight range .

Another measure to reduce the flight range of the projectile is, according to the main patent, "that the wall of the projectile bore is not smooth but rather rough."

In an expedient further embodiment of such a training ammunition, it is proposed according to the invention that the projectile be designed as an essentially hollow cylindrical grain with at least its front end perpendicular to the axis of the projectile ^; to form a.

In the case of a projectile shape that of live ammunition corresponds to one with an ogival point, would inevitably result in an axial piercing at the front end a sharp edge. V / ie easy to see can be found in such a projectile the desired more or less great blunting of at least the front end of the projectile in can easily be achieved by shortening the projectile to a greater or lesser extent at this front end, so that a correspondingly wide ring-shaped end face is formed.

Provided that the measure proposed in the main patent has been used in connection with a projectile designed in this way If the projectile is to be supplemented to its original shape by means of an insert, it must of course be shortened Part of the projectile that is lost during this use is additionally provided, d. H. this is made longer will.

Instead of designing the projectile in a shape that corresponds to that of live ammunition, provision can also be made for the hollow cylindrical projectile body to have a conical taper on the outside at its front and / or rear end, ie the projectile body to be designed as a rotating body of the simplest shape Of course, use can be made of the measure of supplementing the full storey shape by means of a special insert.

The invention is shown in the drawing in exemplary embodiments and is explained below with reference to these. Show it

1 shows a projectile body tapering conically at both ends,

Fig. 2 shows the GtscboS body dt? Pig. 1 and

109111/0136 / 5

-3- 15781

~. 3 a variant of Pig. 2.

Kach ? ± £ · 1 is * the body 1 which is provided with the continuous central opening and is essentially cylindrical on the outside and is provided at both ends with the conical tapers 3 and 4. Instead of the different cone angle shown, this could also be made the same size at both ends or also be provided in the reverse arrangement.

After Pig. 2, the insert 5 is inserted into the front end of the body 1 or its opening 2 by means of the peg-shaped projection 6 used, which complements the body 1 in its outer shape to a complete projectile of conventional design. In the At the rear end of the body 1, the pin 7 is inserted, which, with the flange-like collar 8, forms the rear face of the body overlaps.

When firing, this collar is easily sheared off by the pressure of the powder gases and the pin 7 is driven through the opening 2, v / o it strikes the shoulder 6 of the insert 5 and thus pushes it forward out of the opening 2, so that the body 1 flies to the goal by itself.

In the embodiment of Fig. 3 is instead of the pin the bottom plug 9 with approach 10 in the rear end of the Opening 2 inserted. At the transition from the hollow cylindrical part to the extension 10, this plug is with a weakening zone provided, so that he is here under the action of the propellant powder is sheared off. Correspondingly, the projection 10 is driven through the opening 2 again and strikes the projection 6 and through this pushes the insert 5 out of the opening 2 at the front, so that here too the body 1 again strives solely towards the goal, whereby by means of the relatively large end face 11 and the opening 2 is strongly braked and accordingly only flies a short distance.

Troisdorf, May 31, 1966

^{Kg /} Hueb 10 9811/0135

Claims (2)

15781Ü3 Claims Practice ammunition with a projectile with a continuous central axial bore, characterized in that the projectile as a substantially hollow cylindrical body (1) with at least its front end to the axis of the projectile vertical end face (11) is formed. 2. Practice ammunition according to claim 1, characterized in that the hollow cylindrical body (1) tapers conically on the outside at its front and / or rear end. Troisdorf, May 31, 1966
Kg / hub. 10 9 8 11/0135