CoalTrain49
Member
Deleted.
The 9mm Winchester Magnum is exactly what is called for. Unfortunately, when it was around nobody built a semi auto carbine for it.
CoalTrain,That looks like what I want right there. Already developed, dead and gone.
U.S. Army specifications for the new cartridge mandated the caliber to be greater than .27, with an effective range of 300 yards or more, and a midrange trajectory ordinate of 18 inches (460 mm) or less at 300 yards. With these requirements in hand, Winchester's Edwin Pugsley chose to design the cartridge with a .30 caliber, 100–120 grain bullet at a velocity of 2,000 feet per second (610 m/s)......
I'll assume that your unjustifiably snarky response was just ill-applied sarcasm. So, here's a visual history lesson for you too
MachIV, at least one big contributing factor of the Chachau (not sure if I spelled it right), was the open windowed magazine that allowed mud and dirt to coat and cake the rounds before they even got to the action.