25-04-2019 дата публикации
Номер: US20190120602A1
Принадлежит:
A cartridge includes a case, a primer, and propellant disposed in the case. The cartridge also includes a projectile at least partially received in the case. The projectile includes a main body that defines a counter-bore and a through-bore and a piston received in the main body. The piston includes a base, a head, and a shaft. The projectile defines a non-deployed state in which the base is entirely received within the counter-bore, a first portion of the shaft is received in the counter-bore and a second portion of the shaft is received in the through-bore, and the head is received in the through-bore. The projectile also defines a deployed state in which the base is received within the counter-bore and at least part of the head is not received in the through-bore. 1. A projectile , comprising:a main body including a tip and a tail disposed at opposite ends of the main body, the main body defining a counter-bore extending from the tail toward, the tip so as to define a piston axis and a through-bore extending from the tip toward the tail along the piston axis, wherein the counter-bore defines a counter-bore diameter and the through-bore defines a through-bore diameter, the counter-bore diameter not being equal to the through-bore diameter; anda piston received in the main body, the piston including a base and a head disposed at opposite ends thereof, the piston also including a shaft with a first portion and a second portion that cooperate to connect the base and the head with one another, wherein the projectile defines a non-deployed state in which the base is entirely received within the counter-bore, the first portion of the shaft is received in the counter-bore and the second portion of the shaft is received in the through-bore, and the head is received in the through-bore, and wherein the projectile defines a deployed state in which the base is entirely received within the counter-bore, the first portion of the shaft and the second portion of the shaft are ...
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