I have tried the jim shockey gold pellets and they will not shoot in my gun with any accu at all. Mine will hit a tennis ball every time at 150 with 2 50 gr pyrodex pellets and the barnes 250 gr hp sabots. You will just have to figure out what your gun likes. And make sure your scope is good. People waste lots of time trying to use a cheap scope on an mz and they will eat one up.