Lyman Pistol Dies deliver round after round of the high performance ammo serious shooters demand. Whether for bullseye, action or cowboy shooting, pistol reloaders most often are looking to generate volumes of reloads which deliver consistent quality. That's why Lyman Pistol Dies are such a good choice and they fit virtually any reloading press, including the popular progressives. Most importantly, when it comes to precision, smoothness and versatility, Lyman Pistol Dies are unsurpassed. Lyman Carbide 4-Die Sets feature a separate taper crimp die and two-step neck expander M die. The M die improves the accuracy of cast and jacketed bullets. Like standard expander button styles, the M die doesn't stretch the case. Working in a two-step process, the first step expands the inside of the case neck to just under the bullet diameter. The second step expands the case mouth to bullet diameter or slightly over so that the bullet can be started perfectly centered. Carbide dies do not require ...