I bought a 15lb old red steel keg of old herco a few years ago. I'm on the final pound of it. 90% used in 45 colt with cast bullets. Anybody had much experience with Herco as a handgun powder? It's in old manuals. I'm wondering if any forcing cone erosion issues have ever been reported. I have one barrel that the forcing cone has some erosion. All other 45 Colts have no issue.