Non-toxic frangible bullet core

DETAILED DESCRIPTION We have discovered that, if a very high grade of zinc is utilized in the making of a bullet core, such a core will become quite brittle when it is work-hardened.
More importantly, however, we have discovered that, when a zinc bullet core strikes its target, the impact of the bullet, upon striking the target, magnifies the extent to which the zinc metal hardens, and causes the bullet core to become very brittle and disintegrate upon impact with its target.
Consequently, in forming the bullet cores of this invention, we utilize the purest zinc obtainable, which is 99.
99% zinc, the balance being, in general, impurities.
A minimum zinc content is believed to be approximately 95% zinc.
Our theory is that the impact, created when the zinc bullet core strikes its target, work-hardens the substantially all-zinc bullet core additionally and very markedly, with the result that the bullet core becomes very brittle and shatters into fragments, all of which are less than only about 12% of the original size of the cable segment from which the fragment originated.
The above discovery was made as a result of forming the slug from which the bullet is swaged, from zinc wires.
We make the slug at its heart from a bundle of straight zinc wires, which are bound tightly together by additional all-zinc wires, which are twisted around the heart wires along a 33.
degree.
spiral, to form a zinc cable or rod.
In so doing, the strands of zinc wire inter-engage each other and are slightly deformed.
We then run the cable through a machine which cuts segments off the cable and swages same into the desired shape of the bullet core.
Thereafter, we transfer the swaged core to a machine which applies a copper jacket to the cylindrical end of the core.
This application completes the formation of the bullet core, except for washing, etc.
The swaging is performed with sufficient pressure (36,000-50,000 psi) to form same into the shape of a soft-point bullet core.
These pressures are sufficient to cause the encircling wires to further inter-engage and deform the central wires, as well as themselves, while retaining their individuality, at least to a limited extent, which is visible to the naked eye