I found one of my old posts that has 180gr XTP data by JPH45 at 2060fps in his 357Max, Sierra Infinity doesn't list the XTP, but the 180gr JTC-SIL has a BC of .232 compared to .230 for the XTP, so it's close enough.
After reading the thread below, and you want to know what my velocities were, I never found out, I had it rechambered to 35 Remington.
The google search leaves a lot to be desired, the forum search should be enable after the upcoming server upgrade, but for now it's disabled cuz the server can't handle the huge data base it has to search.
Tim
http://www.gboreloaded.com/forums/index.php/topic,48606.msg283109.html#msg283109Trajectory for Hornady .357 dia. (38 cal) 180 gr. JTC-SIL at 2060 Feet per Second
At an Elevation Angle of: 0 degrees
Ballistic Coefficients of: 0.232 0.232 0.232 0.232 0.232
Velocity Boundaries (Feet per Second) of: 800 800 800 800
Wind Direction is: 0.0 o'clock and a Wind Velocity of: 0.0 Miles per hour
Wind Components are (Miles per Hour): DownRange: 0.0 Cross Range: 0.0 Vertical: 0.0
Altitude: 0 Feet with a Standard Atmospheric Model.
Temperature: 59 F
Data Printed in English Units
Range Velocity Energy Momentum Drop Bullet Path Wind Drift Time of Flight
(Yards) (Ft/Sec) (Ft/Lbs) (Lb-Sec) (inches) (inches) (inches) (Seconds)
0 2060.0 1695.8 1.65 0.0 -1.5 0.0 0.000000000
25 1977.0 1561.9 1.58 -0.26 -0.24 0.0 0.037164507
50 1896.1 1436.7 1.52 -1.08 0.46 0.0 0.075902120
75 1817.3 1319.8 1.45 -2.51 0.56 0.0 0.116305979
100 1740.9 1211.1 1.39 -4.59 0.0 0.0 0.158472919
125 1666.9 1110.4 1.33 -7.39 -1.28 0.0 0.202501755
150 1595.6 1017.4 1.28 -10.97 -3.34 0.0 0.248491764
175 1527.2 932.0 1.22 -15.4 -6.25 0.0 0.296541617
200 1461.7 853.9 1.17 -20.77 -10.09 0.0 0.346745157