I have had a number of 380's and wouldn't put hi pressure in any of them. The current guns aren't made for it. My all steel Makarov pistol ( basically a .380, but a 9x18 ) is another story. +P Hornady XTP hollow points shoot well in these milsurps, developing Muzzle energy over 300 ft-lbs , which is definitely 9mm Luger class. That, however, is a different subject. The point is that older all steel 380's can probably handle high pressure just fine, while the little shirt pocket 380's would not be a good choice.