No, the powder in bags was purchased from a gun shop in West Covina, CA, when I first started reloading in 1963. It was .35 cents a pound for all you could afford, which wasn't much on wages of $1.25 an hour.
You could buy powder from the barrel at Alexander's Reloading in La Puente, CA. You could also rent his reloading equipment by the hour. He had several presses set up at benches around his shop and you paid according to how long you spent at the bench. He had a discount rate if you bought your supplies from him.
Those days are long gone now.