DE2308428A1 - HARD CORE FLOOR - Google Patents

Description

Hard core projectile The invention relates to a hard core projectile in which a sub-caliber hard core at the rear in a recess in the floor of the projectile and on the front side by a centering ring or the like pushed over in one of the weight savings because of the very thin-walled bullet jacket provided with a ballistic hood towards the front is held.

In the case of hard core bullets of the aforementioned type, it often occurs when the shot is fired to deformations of the bullet jacket, which not only affect the flight and hit properties question of the projectile, but also often to a dismantling of the projectiles after leaving the gun barrel.

Furthermore, there is a hard core projectile in which the outer shell consists of aluminum and is very thin-walled, there is a risk that the partially imposed Weapon barrel erosion of the aluminum casing is caused by advancing gases, which can lead to their melting.

These errors would in themselves be made by reinforcing the bullet jacket remedy. The object of the invention, however, is to increase the weight as little as possible the aforementioned To counter deformation or erosion, so that an optimal weight ratio of Hard core to the projectile casing carrying the hard core to the target is achieved.

To solve this problem, according to the invention, a between the hard core and the bullet jacket remaining ring cavity with a filling of mainly cast or injectable material with a low specific weight, which stiffens the bullet jacket and supports it radially. The filling can be self-hardening Synthetic resin, especially cast resin, are used.

This solution not only enables an optimal weight proportion of the bullet in the hard core itself and thus the highest possible effect to achieve in the target but it also puts one from the launch over the ballistic Trajectory reaching to the target, not even through the gas slip in the gun barrel more endangered, mechanical stability of the bullet safe.

The invention is not limited to the construction given by way of example limited to the bullet envelope, but refers to hard core bullets of all practically occurring caliber, in which between the hard core and the highest possible Weight saving, the projectile jacket is kept very thin and an annular cavity remains.

Details of the invention and its practical implementation are based on the example shown in the drawing.

The drawing shows a hard core projectile according to the invention in one Longitudinal section. Then a cylindrical, shaped as a projectile body is inserted Below-caliber hard core 1 tapering to a point at the front in a recess at the rear 2 of a floor 3, with a guide ring 4 and, for example, with a Tracer set 5 is provided. The floor 3 goes into an extremely thin-walled one Projectile jacket 6 into which a ballistic hood 7 is screwed from the front. A centering ring and retaining ring 8 are pushed over the tip of the hard core 1, which supports the hard core 1 centrally with respect to the hood 7 and an axial displacement prevented at launch.

The annular cavity remaining between the hard core 1 and the projectile casing 6 9 is provided with a filling? O a material of low specific weight. The main filler material has been hardening synthetic resin, primarily cast resin proved suitable. In principle, warm plastic, solidifying with little shrinkage could also be used Casting compounds get used. If the load is lower, it may be sufficient also a, a rigid foam forming synthetic resin, z. B.

based on polyurethane.

Claims (2)

Patent claims: fX hard core bullet with a sub-caliber hard core at the rear in a recess in the floor of the storey and on the front side by a slid over it Centering ring or the like in a very thin-walled one to save weight The bullet jacket, which is provided with a ballistic hood, is held at the front, thereby characterized in that one remaining between the hard core (1) and the projectile casing (6) Annular cavity (9) with a filling (io) made primarily of pourable or injectable material Material of low specific weight is provided, which the projectile jacket (6) stiffened and radially supported. 2. Hard core projectile according to claim 1, characterized in that the Filling (lo) of the annular cavity (9) mainly made of self-hardening synthetic resin, in particular there is cast resin.