Anyone else had this "erosion" happening to their wheel gun forcing cone? According to my research it could be caused by double based powders. I'm using Hodgdon longshot max load according to the Hodgdon site. Some peoples using H110 or Win. 296 had the same problem. I also read about peoples using IMR 4227 (single based powder) that didn't have this problem. Any input appreciated.
I also saw some picture of guns having a frame top strap gouge/burn caused by excessive erosion of their forcing cone.
EDIT: Note that this gun isn't even 2 years old and had a little more than 1000 357 rounds through most of them 158Gr. Campro plated bullets and 8.4Gr of longshot (600 or 700 38 spl. store bought win.)