Went to the range this morning to fire my recently acquired P7M8 and try out some ammunition. Using three factory magazines, I fired about 100 rounds of Federal American Eagle 124 grain without a hitch and later mixed in 20 rounds of Federal 147 grain Hydra Shok. These rounds also fired flawlessly even when interspersed with the hardball. The 147 grain is a round I favor, however, I read that this pistol may have issues with this heavier bulleted round. Does anyone use this round as their defensive ammunition? Thoughts?