Once read an article from the 1990s about a group of guys who were hot rodding GP 100s, using heavily pointed bullets and loads aproaching 60,000 cup or PSI on their testing gear. They said the guns were fine as the pointed bullet reduced stress when it entered the forcing cone.
Also read hints and suggestions here and there that the use of wadcutters was a bad idea as the flat front increased impact stress on the forcing cone slightly. Never had any indication of by how much the stress was increased.
So we all know the super light weight bullets and magnum loads, and shooting lead and jacketed bullets without proper cleaning in between the two types of bullet helped create the forcing cone crack issue.
Im just curious as to how much the cracking was impacted by officers using their duty guns for Bulls Eye shooting and PPC shooting with wadcutter loads... some guys claimed 10,000 rounds minimum a year for shooting and practice for contests so im just thinking on the correlation.