I love hornady XTP bullets, I use them in my 357 magnum. I load a 180 grain HP/XTP sitting on 15.8 grains of Vectan SP3, shot from a friends ruger 357 maximum with a 10 inch barrel the load achieved 1410 fps and from my Ruger GP100 with a 6 inch I dont know what velocity its pushing all I know is the buck I shot last year at about 40 yards ran about 15 yards and fell over dead the bullet penetrated through the shoulder split the heart nearly in two I recovered the bullet just under the skin just in front of the right shoulder, it was a perfect mushroom and had pretty good weight retension the before 180 grain bullet now weighed 157 grains.