Bought a G20 awhile back. This is the only pistol I have loaded for, so I am somewhat ignorant to pistol reloading. I loaded up about 30, 180gr HP's with 13.2gr Accurate#9. I have virgin SIG brass and magnum pistol primers. They cycled awesome. No stamps or other signs of pressure.I went up to 13.5gr and the gun jammed a couple times, and split two pieces of brass. Blew the primer out of another. Just comparing to what I read online, I didn't think the load would be that hot. Also, should I be sizing the Virgin brass? I am just using a strait seat die with no crimp. The gun is for protection, so I don't plan on re using brass at all. That gun slings them lol, and trying to find them is not worth my time. Don't plan on shooting it that much either.