Who's done it, and what kind of luck have you had with it? I just picked up an 8 pound jug this morning over at Bruno's, to load a $h!tload of 55 Grain FMJ .223 loads. This stuff is pretty common in .223 loads but I've never loaded it. The chart on the front of the jug says 25.3 Grains of it under a 55 Grain FMJ will spit it out at 3,203 FPS. It's supposed to flow through a measure like greased lightning. Just wondering what kind of luck you guys have had with it? I'm hearing it's a bit pressure and temperature sensitive, but have no experience with it to call. Bill T.