.22 Long: differenze tra le versioni

Versione delle 15:22, 20 gen 2006

Versione delle 16:03, 26 gen 2006

Riga 7:

Nonostante la cartuccia .22 Long originale utilizzasse la stessa quantità di polvere da sparo della .22 Long Rifle e fosse significativamente più leggera, la .22 Long non risultò più veloce se sparata da un fucile.

The large barrel volume to chamber volume of a .22 rimfire rifle indica che the powder gasses have expanded as far as they can in well before the muzzle of a normal length rifle barrel, e the light .22 Long bullet non ha the [[inertia]] of the .22 Long Rifle. Ciò significa che la pallottola .22 Long (e to a lesser extent the .22 Long Rifle, in most loadings) actually slows down significantly prima di uscire dalla canna. Since the .22 Long Rifle performs as well in a short [[handgun]] barrel as the .22 Long does, e outperforms it significantly in a long rifle barrel, lo sviluppo of the .22 Long Rifle assured the .22 Long's path verso l'obsolescenza. In a sense, though, descendents of the .22 Long still live on, though they are not sold as such. Hypervelocity loadings of the .22 Long Rifle usa pallottole aspiù lightleggere asdi 30 grains (1,9 g), e special blends of powder to make full use of a rifle barrel to generate velocità far higher than normal loads, e chamber pressures high enough to cycle semi-automatic firearms reliably. The most well known of these is the CCI Stinger, che actually goes so far as to stretch the case length slightly, so that with the short, light pallottola, the overall length is still within the max overall length for the .22 Long Rifle.