Does anyone knoe the heavieat 9mm round available? I am carrying my 9mm Sig P250 on my backpacking trips. This main thing I may encounter is cougars and wild hogs. I know a .357 or heavy .45 is a better choice, but right now for concealment purposes, 9mm is what I have. I am really looking for a heavy hard cast flat nose or fmj. Any help would be appreciated. Thanks all.