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Rifles, Reloading, Optics, Equipment
Reloading
Neck turning
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<blockquote data-quote="Hugnot" data-source="post: 2811149" data-attributes="member: 115658"><p>Forster F/L die neck honing - enlargement in .001 increments.</p><p></p><p>[ATTACH]460144[/ATTACH]</p><p></p><p>Die on left is a Forster F/L .22-.250 die that has been honed out to .246, right side Forster F/L .243 die honed out to .268</p><p></p><p>.22-.250 rounds assembled with Forster .22-.250 F/L die honed out to .246</p><p></p><p>.[ATTACH]460146[/ATTACH]</p><p></p><p>Assembled round, left side, neck measures .249 OD. -- 75 ELDM @ 3200 fps, 7.7 twist, form factor about .91, nice round.</p><p>Sized, unloaded round, middle neck measures .246 OD - like as indicated on die - brass annealed</p><p>Fired, unsized round, right side, neck measures .254 - brass annealed - .002 to .003 radius expansion from loaded round</p><p></p><p>Neck wall ~ (.249 - .224) / 2 = real close to .013. No expander button. Similar situation for .243.</p><p></p><p>Waiting for a honed-out Forster F/L die. I turn necks for the 6mm CM after a single pass over an expander button then use a 6.5 CM die as a body die then size necks with a Lee 6mm CM collet die having a .262 mandrel.</p></blockquote><p></p>
[QUOTE="Hugnot, post: 2811149, member: 115658"] Forster F/L die neck honing - enlargement in .001 increments. [ATTACH alt="IMG_1929.JPG"]460144[/ATTACH] Die on left is a Forster F/L .22-.250 die that has been honed out to .246, right side Forster F/L .243 die honed out to .268 .22-.250 rounds assembled with Forster .22-.250 F/L die honed out to .246 .[ATTACH alt="IMG_0536 (1).JPG"]460146[/ATTACH] Assembled round, left side, neck measures .249 OD. -- 75 ELDM @ 3200 fps, 7.7 twist, form factor about .91, nice round. Sized, unloaded round, middle neck measures .246 OD - like as indicated on die - brass annealed Fired, unsized round, right side, neck measures .254 - brass annealed - .002 to .003 radius expansion from loaded round Neck wall ~ (.249 - .224) / 2 = real close to .013. No expander button. Similar situation for .243. Waiting for a honed-out Forster F/L die. I turn necks for the 6mm CM after a single pass over an expander button then use a 6.5 CM die as a body die then size necks with a Lee 6mm CM collet die having a .262 mandrel. [/QUOTE]
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