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Rifles, Reloading, Optics, Equipment
Gunsmithing
Full Length Sizer Boring
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<blockquote data-quote="Bullet bumper" data-source="post: 796645" data-attributes="member: 17844"><p>I have found D2 to be quite good so far and it is very dimensionally stable during heat treat . </p><p>I don't try to match the core seater and former as close as the die makers say to , that is pure BS . I make the core seater .0015 to .002 under the point former and it works fine . Gives you plenty of wear in the cores seater before the match is lost and makes it real easy to lapp to a workable size .</p><p>I guess it depends on how much pressure you are putting on the die. To make upto 30 cal bullets I have found that D2 is ok in the core swager and seater so far. Can't say for a point former but Corbins used Graph Air at one time and that is basicly D2 tool steel . None of my dies have ever cracked . </p><p>I use Bohler steel so that may be different to other makes in some way. Maybe the heat treating is the issue .</p><p>I'm talking about bullet swaging dies not reloading dies.</p></blockquote><p></p>
[QUOTE="Bullet bumper, post: 796645, member: 17844"] I have found D2 to be quite good so far and it is very dimensionally stable during heat treat . I don't try to match the core seater and former as close as the die makers say to , that is pure BS . I make the core seater .0015 to .002 under the point former and it works fine . Gives you plenty of wear in the cores seater before the match is lost and makes it real easy to lapp to a workable size . I guess it depends on how much pressure you are putting on the die. To make upto 30 cal bullets I have found that D2 is ok in the core swager and seater so far. Can't say for a point former but Corbins used Graph Air at one time and that is basicly D2 tool steel . None of my dies have ever cracked . I use Bohler steel so that may be different to other makes in some way. Maybe the heat treating is the issue . I'm talking about bullet swaging dies not reloading dies. [/QUOTE]
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Full Length Sizer Boring
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