Also from Brian’s article
“The original Remington factory load contained a 240-grain gas check
swaged lead bullet of semiwadcutter (SWC) de- sign. Advertised velocities were 1,570 fps from a 6-inch bar- rel, but real world velocities from production revolvers usually ran around 1,450 fps. The gas check prevented leading in most guns, but there were occasional revolvers that suffered from barrel leading. Within a few years, Win- chester began offering a factory load driving a 240-grain bullet over 1,600 fps from production revolvers (although advertised at 1,650 fps). As a result Remington increased the pressure of its load. Frankly, both were exces- sive for all .44s of that period, and pressures and velocities were soon reduced.”
