Possibly, Pacific let the patent expire or sold the rights. A lot of improvements, like quick-change shell holders, had appeared.

Herter's offered a massive range of gear from good to barely adequate. The attraction was Low Price.

The Herter's presses, I remember, had a massive cast-iron lever to operate the ram. They were Battleships!

I have one set of Herter's Dies. They are chrome-plated and cheap looking, but, work OK.

I have some Herter's marked 6.5X55mm Brass (actually made by Norma, but, stamped and packaged for Herter's).

A lot of Herter's stuff was made in Europe. Their catalog was a Hoot! They undercut everybody.

p.s. Back in the 1950's and 1960's, Reloading Equipment and Dies cost serious money! The relative cost went down in the 1970's. (IMHO - Due to companies like LEE and increased competition).