A little quick math.
.080" hole (.00503 sq inches) x60,000 PSI = 301.6 lbs
.065" hole (.00332 sq inches) x60,000 psi = 199.1 lbs
Depending on the year of manufacture and which company produced them, most primer cups measure between .019" and .027" thick.
Visualize 300 lbs balanced on a firing pin, pushing on a metal cup roughly the thickness of 2 buisness cards. If you have a combination where you have a thin cup (take away one buisness card thickness) and an .080" hole, it is easy to see where you could get cratering without the other signs of overpressure.
Bullets have well documented performance specifications.
Min Velocity info is available, and describes the performance floor of the bullet... DON'T allow yourself to reference F.P.E. as an accurate descriptor of killing power.. You are smarter than a copy editor, and you understand that you can determine maximum (reliable) effective range by comparing your drop chart to published bullet data....... And, dog-on-it, people like you!