I might carry the stuff if it came in 50 round boxes, but there are so many other proven self-defense loads available in 50 round boxes for similar prices, like the Winchester Ranger T-series, Ranger Bonded, Speer Gold-Dot and Federal Tactical HST and Tactical Bonded. You should be able to find these on the web for reasonable prices and in quantities suitable enough that you can test a few hundred rounds for reliability in your carry gun. These are all proven self-defense loads for the .40 S&W.