Hello, I don't know if 21st century mandrel fit on the turner but the mandrel of the brand of the mandrel (Queen Reloading) are compatibile with Sinclair mandrels.21st century should be able to make you one..
Same words on the upper reply...Or K&M depending on what turner you have.
I can try, but need other stuff a part of the mandrelBora,
I've taken 6 and 6.5mm K&M expanders, chucked then in a drill, spinning them with a flat carbide whetstone to close to my required diameter, and polished fine polishing compound or sand paper.
The process took less than thirty minutes to remove a thousandth or so. No more slop on the carbide turning mandrel and an inexpensive solution for a custom mandrel.
HTH,
DocBII
I look, thanksAnother option for custom mandrel is simply get a Porter’s Precision Collet Mandrel Die and you can then use any size gage pin that you fancy. Perfect excuse for adding another quality tool to your reloading bench.
https://portersprecisionproducts.com/shop/