I have these Winchester reloading tools in 44WCF and 38WCF. I used a carbide drill bit the diameter of the orifice in the tool, and carefully ground down the tip to push the primer and not damage the primer hole in my brass. It requires a bit of extra work, I strike it on a bench vise to pop the spent primer, but originals are unobtanium from what I see. Absence of said pin made both of my original tools affordable, however!