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Rifles, Reloading, Optics, Equipment
Reloading
Do I need to turn necks again?
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<blockquote data-quote="bigedp51" data-source="post: 1700089" data-attributes="member: 28965"><p>Chambers and dies vary in size and you are dealing with a belted case that headspaces on the belt and not its shoulder normally.</p><p></p><p>Example below is a new unfired rimmed British .303 case in a Wilson case gauge. This shows how short the shoulder is on a new case.</p><p></p><p><img src="https://i.imgur.com/RBeuevm.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Below a fired .303 British in the Wilson case gauge resting on its shoulder. And this shows how much further forward the military Enfield chamber shoulder is located. And most belted and rimmed full length sizing dies will push the case shoulder back much further than needed.</p><p></p><p><img src="https://i.imgur.com/HrqwFOG.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Below a new unfired .303 British case on the left showin how short the shoulder location is. The middle case is once fired and the case on the right was full length resized and on the third firing the case had a partial case head separation. </p><p></p><p><img src="https://i.imgur.com/NHlR9jO.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Below rimmed and belted cases if reloaded should headspace on the shoulder to prevent case head separations. </p><p></p><p><img src="https://i.imgur.com/AQEQ9Vw.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://i.imgur.com/3cOMj9s.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Below another example of rimmed or belted cases below. Rimmed and belted cases dated from a age when cartridge manufacturing was not to the standards we have today. The case on the left is a newly manufactured .450 Martini–Henry and the case on the right was made in 1879. To put it bluntly rimmed and belted cases are outdated and from a time when manufacturing standards were very sloppy.</p><p></p><p><img src="https://i.imgur.com/sDrsB0Q.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="bigedp51, post: 1700089, member: 28965"] Chambers and dies vary in size and you are dealing with a belted case that headspaces on the belt and not its shoulder normally. Example below is a new unfired rimmed British .303 case in a Wilson case gauge. This shows how short the shoulder is on a new case. [IMG]https://i.imgur.com/RBeuevm.jpg[/IMG] Below a fired .303 British in the Wilson case gauge resting on its shoulder. And this shows how much further forward the military Enfield chamber shoulder is located. And most belted and rimmed full length sizing dies will push the case shoulder back much further than needed. [img]https://i.imgur.com/HrqwFOG.jpg[/img] Below a new unfired .303 British case on the left showin how short the shoulder location is. The middle case is once fired and the case on the right was full length resized and on the third firing the case had a partial case head separation. [img]https://i.imgur.com/NHlR9jO.jpg[/img] Below rimmed and belted cases if reloaded should headspace on the shoulder to prevent case head separations. [img]https://i.imgur.com/AQEQ9Vw.jpg[/img] [img]https://i.imgur.com/3cOMj9s.jpg[/img] Below another example of rimmed or belted cases below. Rimmed and belted cases dated from a age when cartridge manufacturing was not to the standards we have today. The case on the left is a newly manufactured .450 Martini–Henry and the case on the right was made in 1879. To put it bluntly rimmed and belted cases are outdated and from a time when manufacturing standards were very sloppy. [img]https://i.imgur.com/sDrsB0Q.jpg[/img] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Do I need to turn necks again?
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