I recall in the mid to late 1950s the factories began offering
2 3/4" shells in 12, 16 & 20 gauges with 1oz, 1oz & 1 1/8oz respectfully. All the gun writer of the day referred to these as "Short Magnums" or "Standard Length Magnums". To the best of my knowledge, though I could well be wrong, this was the first time these terms were used.These loads were essentially equivalents of the "Super Ten" in the smaller gauges, but don't recall ever hearing the 1 5/8oz Super Ten referred to as a Short Magnum back in those days.
