Okie i know exactly what caused my 25-06 load to over pressure. I tried to measure neck thickness with a pair of dial calipers and when i had done 8 or 10 i quite checking, i was convinced they were OK. They were not OK I had a thick neck in a tight chamber, and caused severe over pressure. I know how to use a scale but had not been loading long enough to know that the warning i got about thick necks was a real problem. If i want to make brass now (and i do make brass, lots of 260 rem) I get smaller brass and neck up or use a neck turner and turn all of it the same if i have to neck down.