ProGrade is the newest one of four brands out of the little Montana town of Stevensville, population 1820 in the 2010 census. The others are Hunters Shack Munitions (HSM), Bitterroot Valley Ammunition (BVAC), and Armscorp USA. Of the ProGrade cases I've seen, the ones headstamped ProGrade (mixed upper and lower case) are made in the Philippines. The ones with PROGRADE all in upper case, they are made by Starline. All are primed with CCI primers, both nickel-plated and not-nickel-plated. Perfectly good brass.