Partial disintegration projectile
Partial fragmentation projectiles are designed to disintegrate in a controlled manner down to a defined residual body.
For example, a double-core bullet always retains a residual mass of 60%. A partial jacket bullet such as the cone point bullet or the TM bullet from the ammunition manufacturer RWS also belongs to the group of partial disintegrators, whereby the residual body varies slightly depending on the target resistance and bullet velocity.
The principle of action of this type of bullet is based on the massive organic destruction caused by the controlled release of the bullet fragments and the defined residual body. The suction effect of the residual body ensures that the fragments of the front core largely leave the game body.
Deformation bullet
The deformation bullet mushrooms on impact with the game body and remains mass-stable. It is designed to lose hardly any weight in the game body.
Example evolution: The effect is primarily achieved by the increase in cross-section of the uniformly mushrooming bullet and the constant weight.
Advantages and disadvantages!
As with almost all questions concerning ammunition, that of the type of bullet is always wildly discussed in hunting groups on social networks and in forums. Everyone is of the opinion that they have chosen the only correct bullet type. But here again, as so often, the truth lies in the middle.
Which type of bullet should be used depends primarily on the caliber used, the distance the bullet is to cover, the weapon used, the laboratory, the point of impact and, last but not least, the type of game being shot at and the desired effect in the game body.
Some of these factors are defined by legal regulations. For example, there are regulations according to which certain cloven-hoofed game may only be shot with cartridges in which the bullet transmits a certain energy at 100m, 200m and 300m. As a rule, the energy of the bullet depends mainly on the caliber of the cartridge.
Forexample, if you shoot a weak fawn at 80m with a .300 Winchester Magnum caliber cartridge and fully kick the leaf, the fawn - regardless of whether you have chosen a partial decomposer or a deformation bullet - will probably lie in the bang. However, the venison in the front half of the piece will also be barely usable. A cartridge of this caliber will bring almost 4000 joules to the target at 100m with a weight of about 160-190grs. A cartridge of the caliber 6.5 x 57, on the other hand, will bring only half of the energy, i.e. ~2000 J, to the target at 100m.
Now, for the extent of game destruction in this case, the point of impact is still very decisive, because:
If the projectiles hit bones (here the leaf), more energy is naturally emitted in the collision with this resistance. If the bullets (of whatever type) hit behind the blade between two ribs, the resistance would be lower and less energy would act in the game body. Understanding the content of this small digression is essential to understand the following facts:
The partial fragmentation bullet becomes good in the sense of quick killing and game preservation mainly when it encounters little resistance in the game body in front of the organs. If the resistance is too strong at or shortly after the first contact with the game body (e.g. the full leaf of a mature bass), the splinters detaching from the core may not work properly because they get stuck in the fragments of the leaf and thus cannot penetrate to the organs and destroy them. Also, in this case, the core is reduced in mass and thus has less residual "destructive power". With partial dismantlers, it can therefore be advantageous to produce so-called kitchen shots behind the blade, since in this case the initial resistance is low, but the splinters can then destroy the lungs over a large area by spreading out and escaping from the game body again with the suction of the core.
The deformation projectile remains largely mass-stable when penetrating the game body and is intended to "tear a hole" in the game body and the vital organs, so to speak. These bullets are also often referred to as "stoppers" by hunters. They give off a lot of energy when they hit the game body with sufficient resistance and thus often knock the piece down with force. With this type of bullet, however, there is a danger: If the bullet encounters too little resistance and therefore does not mushroom sufficiently and does not release enough energy, it may initially leave too little damage in the game body.
One could now run through the scenarios of all possible point of impact positions for both types of bullets and always assume minor differences with advantages and disadvantages. However, it seems to make more sense to always think about the distances and calibers at which you primarily hunt which game species and how your own point of impact usually looks. The advantages and disadvantages of the different types of bullets and the different types of laboratory tests depend very much on one's own experience and also on how one personally evaluates the effect in the body of the game. One prefers to sharpen a little more game and has had every sow in the bang for it and the other goes also again 80m with the dog after and produces for it but a kitchen shot according to his feeling.
When choosing ammunition, the most important thing is to adhere to the legal regulations and to always plan the hunt so that the piece is hunted cleanly and in a way that is appropriate for the hunter.