I believe the old 5/16″ LEE brand dops are keyed the same and will fit the Alpha Taurus machine. Last summer Beckham’s Barn Rock and Gem Shop in Irma, SC had a used set of LEE dops for sale. If you can’t find a better set you may want to give Joan a call and see if she still has them. Here is a link to her web page: http://www.beckhamsbarn.com/
And here is the image she emailed me of the set she has:
[img src="https://lh3.googleusercontent.com/EXOwaCLM5a5Dee5KdiFjwCgjKLsoPvAcB0zVqBnumu99ThvuwAKpuvZtTmCJqkAz8SOF6RbwMoMwBZXTvJmbKWqVLxf7rT0DcB0l_H9Eb6ElR9vFjxr1DCLf4sfEMHou49LMA7EKGvH3hQX1LcZlYSuVae6J3531VoXuewsi-z2pliP120gEcY5_dm6FDpsoDbgmbJYiwypRd6b4Cg668aRNtvrxkTWj-wQ0WE3y1GgNvP8UzkrldDHBuJ74gRC1PXPt49anCxd1WehP00qX_TCJpHuPKwijUe5UAuZH8ZtY5VLzDaXjOyMXHwQc8JgbLz8DZyQsW1CMvfPicWqZPlwIpEuyuq0H50exANZOmFHbYKbHN6JuVkIp9SeBJv1-_xa_t_YokU9JU6H0osAJf1WmjUqg2puAdGD3z9AYWe_N4lKiTGjvH_SV4mun4yzyc8vxdlzpB3pdPZesvy0GzE4PobZbdo_ktofXeCySQ-9da0snybdZh69dm_nGTZguccr_I3XNiXx4-TvDYmzQTbf3N6ZJmYwjz9FInNfp75vb7IGnT4cuFZdbZJzO73l0wnmRjnNmtxy8VgSYgg0dqhOOGj0mqE6BlhhntHtf=w439-h585-no" alt=" "]
@moregems – Sorry but no, not the same as the Facetron Dops. The OP states that his Alpha Taurus machine uses 5/16″ diameter dops. The Facetron Dops are 1/4″ dops. Also Facetron dops are keyed differently than the 5/16″ diameter Alpha Taurus dops. They are not interchangeable.