Description
Over the past several months we have received many requests to make expanding mandrels from carbide. Due to this popular demand we are now offering expanding mandrels from carbide. Carbide reduces galling and scratching both on the inside of the case neck and the mandrel itself. We still recommend the use of lubricant when expanding case necks to make the operation easier.
These mandrels are ground from a 3/8” solid carbide blank and sized properly to expand case necks, preparing them for neck turning. They can also be used to iron out dings and flat spots on new brass not destined to be neck turned, preparing them for loading and bullet seating.
3 Reviews
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Carbide expander mandrel
Very happy with this mandrel. The machining is excellent, and it provides very consistent smooth expansion when used with the 21st Century die. Deposits from the brass have accumulated on the mandrel, but it doesn’t seem difficult to clean off.
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30 CAL Carbide Expanding Mandrel
The 30 Cal Carbide Expanding Mandrel appears to be high quality and I expect it will last a long time. I am using it in a PMA expander die body to prep 308 brass after trimming with a Dillon case trimmer in a progressive press. Operation in the press is very smooth and takes minimal effort. Seating bullets seems very consistent and smooth after using this expander.
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Custom Ground Mandrel
Ordered a Custom Ground Mandrel to my specification. It was made and in my hands in about one third of the projected time. Also, it was not just within the small alloted tolerance, it was exact (.3050) as measured by my brand spanking new Mitutoyo Micrometer. When you want someone knowledgable to talk to and high quality products, PMA is a great place to start. Bravo and two thumbs way up! Edward