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Rifles, Reloading, Optics, Equipment
Reloading
hands down best brass for reloading 7mm rem mag
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<blockquote data-quote="bigedp51" data-source="post: 1437492" data-attributes="member: 28965"><p><span style="font-size: 18px"><span style="color: #000000"><strong><a href="https://sierrabulletsblog.com/2016/09/14/reloading-101-fireforming-cases/" target="_blank">Reloading 101: Fireforming Cases</a></strong></span></span></p><p><span style="color: #000000"><a href="https://sierrabulletsblog.com/2016/09/14/reloading-101-fireforming-cases/" target="_blank">https://sierrabulletsblog.com/2016/09/14/reloading-101-fireforming-cases/</a></span></p><p></p><p><strong>The most common way:</strong></p><p></p><p>With a new case, we will want to seat a primer first off. The next step requires us to determine at what length the bullet (we want to use in the fireforming load) will touch the rifling. (It is best to use a heavier weight bullet for the cartridge and if available a flat base bullet.) Then, select a powder for the cartridge you are working with. The better powders are those that fall in the middle of the burn rate range for the cartridge and bullet weight. <strong>Use a mid-range load with the powder and bullet selected</strong>. Then seat the bullet to touch the rifling. The bullet touching the rifling causes the cartridge rim to be in contact with the bolt face or receiver, so that the firing pin strike cannot cause the case to be shoved forward. <strong>This then allows the case to expand to the chamber dimensions with out the weakening stretch that otherwise would take place.</strong> It is always best to use new unfired cases. Cases that have been previously fired, whether it be factory ammo or cases that were loaded and not fireformed first, will almost always have a certain amount of stretch that has occurred. This initial stretching is usually when the most damage occurs.</p><p></p><p>NOTE, when using Quickload it tells you jamming the bullet into the lands will raise the start pressure approximately 7,200 psi. So a mid-range load would be more than safe and well below the max rated chamber pressure.</p></blockquote><p></p>
[QUOTE="bigedp51, post: 1437492, member: 28965"] [SIZE=5][COLOR=#000000][B][URL='https://sierrabulletsblog.com/2016/09/14/reloading-101-fireforming-cases/']Reloading 101: Fireforming Cases[/URL][/B][/COLOR][/SIZE] [COLOR=#000000][URL]https://sierrabulletsblog.com/2016/09/14/reloading-101-fireforming-cases/[/URL][/COLOR] [B]The most common way:[/B] With a new case, we will want to seat a primer first off. The next step requires us to determine at what length the bullet (we want to use in the fireforming load) will touch the rifling. (It is best to use a heavier weight bullet for the cartridge and if available a flat base bullet.) Then, select a powder for the cartridge you are working with. The better powders are those that fall in the middle of the burn rate range for the cartridge and bullet weight. [B]Use a mid-range load with the powder and bullet selected[/B]. Then seat the bullet to touch the rifling. The bullet touching the rifling causes the cartridge rim to be in contact with the bolt face or receiver, so that the firing pin strike cannot cause the case to be shoved forward. [B]This then allows the case to expand to the chamber dimensions with out the weakening stretch that otherwise would take place.[/B] It is always best to use new unfired cases. Cases that have been previously fired, whether it be factory ammo or cases that were loaded and not fireformed first, will almost always have a certain amount of stretch that has occurred. This initial stretching is usually when the most damage occurs. NOTE, when using Quickload it tells you jamming the bullet into the lands will raise the start pressure approximately 7,200 psi. So a mid-range load would be more than safe and well below the max rated chamber pressure. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
hands down best brass for reloading 7mm rem mag
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