I totally agree with GeauxTide. Unless you’re shooting thousands of rounds if the lead is of a proper hardness and not swaged 1000 FPS is no issue and that’s without gas checks.
Another bullet to try is Penn bullets. I have pushed his hard bullets out of a Ruger 77/44 over 1400 and leading is minimal.
http://www.pennbullets.com/44/44200rnfpbb.html