Picked up two 20 round boxes of above ammo. Other info states XD X-treme Defence. Case head stamp has two "*" separated by a ~3/16" long arch. Not many bears in Okla. No pressure warnings, no velocity info. Not sure I want to try in my blackhawk but it probably would be OK. Internet search did not give me much info. Any one have experience or info on this ammo? Would probably be a light load for a 454 Casull gun.