ORIGINAL: apple12

Here what my dad and i have come up with. My Dad talk to RCBS today and
they say the chamber is small and if I send them the dies and 5 fired case
they will redo the dies for my gun. If I measure a factory case and then
I measure 1 of the resized cases they are .004 in. bigger then factory cases. Could the dies be bad or could they be right. Should I return dies or
send them to RCBS. thx for any help.