Description
Our Neck Expanding Mandrels are designed to fit both the 21st Century Shooting and Sinclair Expander Dies. Our mandrels are longer than other expanding mandrels and feature a special dual taper which expands both on the up and down stroke of the press to more uniformly expand and straighten case necks.
Expanding Mandrels are available in the following calibers:
17, 20, 22, 6mm, 25, 6.5mm, 270, 7mm, 30 and 338
Also available in our Neck-Up mandrels for 22cal – 6mm and 6mm – 30cal. Perfect for necking 220 Russian up to 6mm for PPC and 6BR up to 30 caliber for 30BR.
17 Reviews
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works great
All PMA products are great, but I love PMA the most for their fast and quality service!
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Great product
Very precise high polish great product
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Expander Mandrel
I have several of these mandrels to cover all the rifle calibers I reload for. They do exactly what they are intended to do very well. They are great for upsizing case necks (.223 to 300AAC, etc.) and for insuring case mouths are round and to size. I wish they were available in fractionally larger sizes (ie. .2235", .224"; .2635"; .264"; .3075", .308") to lessen neck tension since I do not use bushing dies.
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26CAL. EXPANDER MANDREL 6.5MM (.263")
Very accurate. The only way this can be better is to purchase the carbide expander, which is what I will be doing...
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Good to go
Works as it should, simple tool built right.
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Great product. Perfect neck dimensions.
Gives me a little over 2 thousandths in neck tension reliably in Petersen and Lapua brass.
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Great quality
Would have gotten the carbide model but went the cheaper route
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Works awesome
Would purchase again
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Best mandrel
This mandrel is double tapered so you can feel it resizing the neck on the down and up stroke. Because of the feel you also don't tend to bottom out the mandrel base on the case bottom like the Sinclair's do because you have much better feel.