Has anyone had an RCBS neck expander be undersized? I have my 300AAC blk out dies, formed all my brass, and after many moons now, have finally gotten time to start loading.
My casts are dropping at .310. First one I tried as a dummy round shaved lead.
Checked my casts, no growth, checked the expander and it measures by calipers .306, by micrometer .3055.
Tried a 30 caliber j-word, and it was oversized even.
Anyone though ever encountered trouble like this?
Calling RCBS as I write this to see what they say and hopefully get the right expander sent to me.
As an update, just got off phone with RCBS guy, he told me the expander should be a nominal of .307, and that mine is undersized. Talked a few minutes with him, turns out he's a hoosier from his youth, but he's putting in a note for the whoever, to measure me one out thats larger than the nominal. Thought that was really nice of them.
As an after thought, I've watched what seems to me to be RCBS taking a downturn on quality over the last decade, esp the last 5 years. But it's hard to beat the no questions asked policy they and Hornady have.