http://crossfireammunition.com/index.php?option=com_content&view=article&id=69&Itemid=57 (http://crossfireammunition.com/index.php?option=com_content&view=article&id=69&Itemid=57)
Black Max from Crossfire Ammo here in Ohio. GREAT people to do business with. The 10mm (soft copper hollow point) comes out in 140 gr. at 1,550 fps MV. Don't know if it is THE hottest but pretty darn near.
In a perfect world I think I would prefer a heavier round but this comes out to 746 ft.lbs!!
Pat
Yes it has been tested and pulled-down to see what was inside...here is a link to the ammo review & test
http://10mm-firearms.com/factory-10mm-ammo/crossfire-ammunition-1773/ (http://10mm-firearms.com/factory-10mm-ammo/crossfire-ammunition-1773/)