Anecdote: I asked my sister, a burgeoning shooter, to buy some .357 Magnum ammunition for a range session we scheduled. I thought she was getting WWB or something.
Oh, no. She got Magtech. I knew what we were getting into, she didn't.
The flame shot out about a foot and a half from my 2 1/4" Ruger SP101. I was OK with it, but I was suspicious of how she would handle it. Imagine my surprise when she loved shooting it. She did a whole box by herself, and this with a SIG P239 and a Glock 22 and 27 as alternatives.
Yes, it hits like a champ out of a snub-nosed revolver. But man, is it fun. Both myself and my sister agree. Too bad it's so expensive ($24 a box, which was the cheapest there was around here (Central PA)).