I did not even scratch the surface of reloading. All I hoped to do was point in a direction and if you were interested enough to look, maybe you would investigate further. I want to close that series of posts with a cautionary tale, told by a reloader about his experiences with a fast burning pistol powder and what almost certainly was a double charge. He first posted this in January 2005, but I’ll bet he thinks about it every time he sits down at his reloading bench.
That is until you realize a few things. 9.0gr in a .44 magnum case is, more or less, a drop in a bucket. In subsequent tests I’ve recently performed, it’s all too possible to double charge a round and have it go unnoticed in a progressive loader.
–From the linked post by an anonymous reloader