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I have searched fervently to find any good info on here about turning some necks to no avail. I recently purchased the 21st Century neck turning tool, pretty awesome.
I wanted to know how often and if you even neck turn at all your Grendel brass. If you do, how much do you trim off?
I am now on my 3rd round of reloading my AA brass, I just annealed all of them, just curious about when to neck turn.
WildBill3/75
Unregistered
Here is a good article on neck turning...
http://www.6mmbr.com/neckturningbasics.html
To answer your question I do not neck turn at all.
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No one that I know of turns Grendel brass. The only reason to turn necks would be if you had a match chamber with a tight neck. The Grendel chamber neck is .300, which leaves LOTs of room when loaded brass runs .290-.292 or so. I don't anneal Grendel brass either, though a very few do. I have 20+ reloads on some of my Lapua brass. The low pressure of the Grendel is very easy on brass.
You seek escape from pain. We seek the achievement of happiness. You exist for the sake of avoiding punishment. We exist for the sake of earning rewards. Threats will not make us function; fear is not our incentive. It is not death that we wish to avoid, but life that we wish to live. - John Galt
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Not on an AR auto-loader.
I neck size for a 6.5*47 bolt gun so I have the pilot but think it would be a wasted effort on the Grendel.
Two types of neck sizing; sizing all brass to minimum neck thickness, or to a specific neck thickness (for tight chambers). The Grendel neck is too big and the system too robust for even minimum thickness sizing to show a measurable difference. Just buy quality brass, like Lapua.
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I have a .293 chamber neck on my mini mauser 6.5 GM and I don't turn necks, using either Hornady brass or Lapua 7.62x39 FF brass.
