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Rifles, Reloading, Optics, Equipment
Reloading
300 Win Mag Build and Loading Questions.
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<blockquote data-quote="65WSM" data-source="post: 1148524" data-attributes="member: 9551"><p>The goal of a sizing die is to modify the case to hold the bullet with consistent and minimum tension and to make the cartridge case fit the chamber of the barrel. The minimum "sizing" you can tolerate promotes accuracy and case life. </p><p></p><p>I have 4 rifles that I do not size cases for at all between firings. These are called "tight chambered" rifles. The include the latest, an EA Brown falling block in .219 Zipper, a Highwall replica in 6mm PPC, a Model 70 in 6.5-284 and a 6.5 - 06 Ackley improved. I also have a tight chambered wildcat I call a .224 Nisqually so I guess that makes 5 tight chambered rifles.</p><p></p><p>The next step in sizing is to partially resize the neck only. I like the Wilson Bushing die and arbor press for this. The Wilson die sizes half of the neck and allows you to control neck tension easily. The base of the neck is left chamber size and allows the case to center itself in the chamber. </p><p></p><p>The next step is the Bump Bushing Forester dies. These size the neck with bushings and push back the shoulder slightly. This is helpful in rifles with little caming power to seat tight cases like my beloved falling blocks. The Bonanza Press will center this size operation more accurately than other press because it has a spring suspended case holder. </p><p></p><p>The Redding Bushing size dies are available in neck only and "full length" and are necessary in many factory chambers. Again the Forster Bonanza press will center this size operation the most accurately. </p><p></p><p>The photo shows a rifle with poor caming power compared to a Model 70 or Remington 700.</p></blockquote><p></p>
[QUOTE="65WSM, post: 1148524, member: 9551"] The goal of a sizing die is to modify the case to hold the bullet with consistent and minimum tension and to make the cartridge case fit the chamber of the barrel. The minimum "sizing" you can tolerate promotes accuracy and case life. I have 4 rifles that I do not size cases for at all between firings. These are called "tight chambered" rifles. The include the latest, an EA Brown falling block in .219 Zipper, a Highwall replica in 6mm PPC, a Model 70 in 6.5-284 and a 6.5 - 06 Ackley improved. I also have a tight chambered wildcat I call a .224 Nisqually so I guess that makes 5 tight chambered rifles. The next step in sizing is to partially resize the neck only. I like the Wilson Bushing die and arbor press for this. The Wilson die sizes half of the neck and allows you to control neck tension easily. The base of the neck is left chamber size and allows the case to center itself in the chamber. The next step is the Bump Bushing Forester dies. These size the neck with bushings and push back the shoulder slightly. This is helpful in rifles with little caming power to seat tight cases like my beloved falling blocks. The Bonanza Press will center this size operation more accurately than other press because it has a spring suspended case holder. The Redding Bushing size dies are available in neck only and "full length" and are necessary in many factory chambers. Again the Forster Bonanza press will center this size operation the most accurately. The photo shows a rifle with poor caming power compared to a Model 70 or Remington 700. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
300 Win Mag Build and Loading Questions.
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