The 300 Weatherby Magnum is a long action.
The .17 Remington cartridge would be chambered for a short action rifle.
Normally a rifle chambered for .243 Winchester would be built on a short action.
Doubtful. The .308 Norma Mag was a fairly short lived cartridge, and competed with Weatherby's own line of magnum rifle calibers.
The 223 is considered a Short Action rifle.
.223 is considered a short action cartridge.
It depends on the particular model of the rifle, not the caliber it is in. What model and make is it?