I've come to realize that of UncleNick's list, two "threshhold" signs stand out as hard to misinterpret (other than something so way over the top as to invoke HolyCow! rating):
1. The primer pockets get get noticeably easier to seat into/if not unusable after 4-5 firings. (You are 10% over brass rating and should back off 5-8% in powder charge)
2. You begin seeing ejector cutout "smears" on the case head/bolt is sticky to open. (You are at least 20% over brass rating and should immediately cease work/pull remaining bullets/back off 10-12%)
Primers are next to useless these days, and measuring subtle web expansion has fallen by the wayside (although primers falling out is a web expansion corollary)
Last edited by mehavey; January 27, 2012 at 06:43 AM.