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Rifles, Reloading, Optics, Equipment
Reloading
Case Head Separation
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<blockquote data-quote="243winxb" data-source="post: 1943010" data-attributes="member: 97793"><p>Separations in the case body are from stretching, as the head to datum gets longer.</p><p></p><p>Its possible for light loads to expand the case body diameter, outwards & make the head to datum measurement shorter, at the same time. On the next full pressure loading, the brass stretches. This can be seen when using Hodgdon reduced Youth Loads with H4895.</p><p></p><p>With only 1 case separation, i dont think i would worry about it. Where the separation is happening should seal the chamber on firing. Had many 223 separate in the middle because of .014" stretch. No gas made its way back to me shooting an M16A1 carbine.</p><p> A bright shiny line may appear- [ATTACH=full]203975[/ATTACH]</p><p></p><p>Online, a false shoulder or lightly oiled brass has allowed brass to flow without damage on the first fire forming.</p></blockquote><p></p>
[QUOTE="243winxb, post: 1943010, member: 97793"] Separations in the case body are from stretching, as the head to datum gets longer. Its possible for light loads to expand the case body diameter, outwards & make the head to datum measurement shorter, at the same time. On the next full pressure loading, the brass stretches. This can be seen when using Hodgdon reduced Youth Loads with H4895. With only 1 case separation, i dont think i would worry about it. Where the separation is happening should seal the chamber on firing. Had many 223 separate in the middle because of .014" stretch. No gas made its way back to me shooting an M16A1 carbine. A bright shiny line may appear- [ATTACH type="full"]203975[/ATTACH] Online, a false shoulder or lightly oiled brass has allowed brass to flow without damage on the first fire forming. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Case Head Separation
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