Xtreme Plated Bullets says 1500 FPS is OK!!! Anyone tried these out of a .357 rifle?

[Macchina]

I have read in the past to keep Berrys plated bullets below 1100 FPS due to having a very thin copper plating that may come apart at high speeds. I recently ordered 1000 of the 38 caliber 158g HP bullets from Xtreme because they have a much thicker plating. I was looking for loading information (using Berrys Bullet's data) but then found the note on Xtreme's website to keep speeds under 1500 and to use hollow points when going for the 1500 fps loads!

Their website reads:

Load Info:
- Our Copper Plated Bullets can be run at mid-range jacketed velocities or higher end lead velocities. We do not recommend velocities over 1500 FPS (Feet Per Second) and only a light taper crimp.
Any velocities over 1200 FPS we recommend either our Heavy Plate Concave Base or Hollow Point products for superior accuracy. We do not recommend velocities over 1500 FPS (Feet Per Second) and only a light taper crimp.

I don't plan on loading these on top of H110 (due to the need for a heavy roll crimp) but I will try to work up to some max loads of Power Pistol. I have a Ruger 77/357 with an 18.5" barrel. I know that hardcast 158g LSWC are going 1600 FPS out of my rifle with Power Pistol, so some just-under full loads may be right at 1500 FPS.

Has anyone ever pushed Xtreme Bullets HPs that fast? Any favorite medium-range .357 loads for this bullet?