Hello
I'm looking to load some handgun .357 magnum using 158 gr commercial hard cast LSWC with a diameter of .357 using Hodgdon Universal powder. I reviewed the Hodgdon site and the COL for cast is 1.161 while the COL for the HDY XTP is 1.580. I am new to cast bullets and read that cast diameter is usually 0.001 larger than jacketed bullets (HDY XTP is .357). The cast lead bullet's crimp groove gives me a COL of 1.580.
They will be light loads and just wanted to make sure I'm not pushing the pressure.
Thanks for your advice.