Charles L. Cotton wrote:I used to mold bullets many years ago, . . . I used Lyman 4 cavity molds for everything.
If you find an old Lyman mold from years ago for sale, it would likely do a good job.
However, I would
strongly recommend you do not purchase Lyman molds now. Not only have I had quality problems in recent years, but if you read the Castboolits forum, it is pretty commonly accepted that Lyman's quality has slipped a lot in recent years. They are known for using the cherry that cuts the mold for too long and selling undersized molds that produce undersized bullets.
My last Lyman mold was a .45 ACP 4-banger that dropped bullets that were .449-.450", instead of the typical .452". Undersized bullets allow gas cutting around the edges of the bullet and produce horrible leading. Here is what that Lyman mold produced in my gun:
Even after I sent it back to the factory for rework, I still was not happy with the results.
I also have casted with Lee, RCBS, and Saeco molds, and they all were fine. The Lee 6 banger molds can pump out an incredible number of bullets per hour. NEI's molds have a great reputation but I haven't used them. My personal favorite are Mihec molds, which are custom molds purchased via group buys on the Castboolits forum -- they are a work of art.