The evolution of American police arms is an interesting one. It’s often one that highlights a difference between back east and out west. While the western states had a degree of lawlessness to them, which demanded large frame revolvers and calibers that start with .4, the lauded gentry back east prized themselves as civilized. This meant that such big revolvers weren’t necessary, and calibers that started with .3 were acceptable. That’s why guns like the S&W Regulation Police in .32 S&W Long exist.
