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  1. Expander Mandrel | Sniper's Hide Forum

    May 23, 2023 · Been reading a lot about expander mandrels and, particularly, the use of 21st Century expander mandrel (0.001 below bullet diameter) and turning arbor (0.002 below bullet diameter) over …

  2. Do you use expanding mandrels after a full-length bushing die for neck ...

    Jan 6, 2024 · I have a question for those who use the expanding mandrels from Wilson, Sinclair, K&M and 21st Century. It looks like the standard size mandrels are 1 thou or 0.0008 +/- 0.0002" under …

  3. Bushing dies and expanding mandrel - Long Range Hunting Forum

    Oct 22, 2024 · I currently have bushing dies for sizing and have recently pulled the expanding ball out of them as I started using mandrels for expanding. Curious on others thoughts. Is it over kill having …

  4. When to use an expander mandrel; is it even necessary?

    Jan 25, 2010 · Alternatively, you can use the mandrel to uniformly expand and uniform the necks after you use a bushing die with the expander ball removed. The effect is that you are pushing the …

  5. Bushing dies and using a expanding mandrel - Sniper's Hide

    Jan 22, 2020 · Have a question if I am using a bushing die to set neck tension on the brass, would you also need to run a expanding mandrel after you already did a FL sizing of the brass with a bushing …

  6. Expanding vs Turning Mandrels - Long Range Hunting Forum

    Feb 8, 2019 · If you haven't already purchased any expanding mandrel tools I'll suggest looking at the Porter's Precision system. It uses standard gauge pins for the mandrels and standard ER series …

  7. Galling Wilson expanding mandrel - Long Range Hunting Forum

    Nov 10, 2014 · People used arbors as expander mandrels paired with bushing dies, but ultimately neither the expanding mandrel or turning arbor was the correct fit in new brass to maintain good …

  8. Expander mandrel use with a Redding type S die - Sniper's Hide

    Feb 28, 2018 · To the OP, I removed the expander (and decapper) from my Redding type S and use the Sinclair expander. I bought both turning and expanding mandrels as I intend on testing which my rifle …

  9. What size mandrel to expand? | Sniper's Hide Forum

    Mar 25, 2017 · I’m going to give expanding with mandrels a try. Do you guys recommend -0.001 or -0.002 in size. I anneal with an AMP before each loading and size with Redding type S bushing dies.

  10. Expander mandrel vs neck bushing die for neck tension

    Jan 26, 2009 · The expander mandrel is .263 and allowing for spring back .001 I have .002 neck tension. If you use a bushing .002 or say .003 smaller than your loaded round and run the brass through the …