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Rifles, Reloading, Optics, Equipment
Reloading
7mm Rem Mag help needed
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<blockquote data-quote="300rum" data-source="post: 411106" data-attributes="member: 6231"><p>Every barel is different, and for your safety YOU HAVE TO CHECK YOUR BAREL.</p><p></p><p>You can use 2 methods.</p><p>The most acurate is the Hornady or Sinclair method.</p><p><a href="http://blog.sinclairintl.com/2009/03/26/determining-bullet-seating-depth/" target="_blank">Determining Bullet Seating Depth | The Reloading Press</a></p><p></p><p>You can use the old fashion too, but is not as acurrate. Can get you there for sure.</p><p>Just unscrew the Seating dies all the way up</p><p>take a resize case (WITHOUT PRIMER)</p><p>seath a bullet</p><p>take a lighter and heat the bullet till you get black color all around</p><p>- insert slowly in chamber and close the bolt.</p><p>remove slowly the bolt, and check for rifling marks on bullet.</p><p>NO marks, just screw the die down a little and follow all the above.</p><p>When you get slight marks on bullet, just back little bit and repeat in small steps till you see just a tiny hair mark.</p><p>This is your COAL = touching the land mark.</p></blockquote><p></p>
[QUOTE="300rum, post: 411106, member: 6231"] Every barel is different, and for your safety YOU HAVE TO CHECK YOUR BAREL. You can use 2 methods. The most acurate is the Hornady or Sinclair method. [url=http://blog.sinclairintl.com/2009/03/26/determining-bullet-seating-depth/]Determining Bullet Seating Depth | The Reloading Press[/url] You can use the old fashion too, but is not as acurrate. Can get you there for sure. Just unscrew the Seating dies all the way up take a resize case (WITHOUT PRIMER) seath a bullet take a lighter and heat the bullet till you get black color all around - insert slowly in chamber and close the bolt. remove slowly the bolt, and check for rifling marks on bullet. NO marks, just screw the die down a little and follow all the above. When you get slight marks on bullet, just back little bit and repeat in small steps till you see just a tiny hair mark. This is your COAL = touching the land mark. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
7mm Rem Mag help needed
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