George L Herter (died 1994) was an eccentric mail order marketing genius who started in business in 1937 and basically went out of active business (or was put out, by the Federal Environmentalists) by about 1980. Link: http://neveryetmelted.com/2008/12/19...his-catalogue/
Today Cabela's owns the Herter business name. Both Cabela's and Gander Mountain owe much their business success to Mr. Herter. Maybe that is why Cabela's bought and still uses the Herter's name, and used to sell a reprint of one of Herter's later and bigger catalogs.
Herter's put its name on many different products, including boats, bows, firearms, safety razors linked to the name "Mauser", and just about any other hunting, fishing, shooting related item you care to name.
According to George (who could be accurately called the P T Barnum of mail order marketing) everything that Herter's put its name on was not only the very best quality, it was superior to anything else that you could buy. George did not make his bows and fishing rods out of ordinary inferior fiberglass but used something he called farbanglass. His safety razor was a Mauser, and so on.
In reality, some Herter products were excellent, a few more were very good. Most products were mediocre, but still would get the job done and were a decent buy for what you paid.
As to the current line of Herter's ammo, it appears to be made in several countries, including Russia, Czech Republic, and USA.
Steel cases can be harder on extractors and ejectors that are not engineered to handle them. A bronze (or stainless steel; use SS with caution) chamber brush, turned at a slow speed (estimated 25 to 150 rpm) by a variable speed drill motor, in conjunction with an and aggressive solvent, will take care of any hydrocarbon deposit accumulation in a chamber.
Hope this is informative.