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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
cooper 280 ai
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<blockquote data-quote="J E Custom" data-source="post: 1026211" data-attributes="member: 2736"><p>Hear are the two SAAME reamer drawings that may help.</p><p></p><p>Look at the bottom drawing on each cartridge, It is the reamer dimensions (The top drawing is the</p><p>Maximum dimensions for the loading of the commercial ammo.</p><p></p><p> <a href="http://www.saami.org/PubResources/CC_Drawings/Rifle/280%20Ackley%20Improved.pdf" target="_blank">http://www.saami.org/PubResources/CC_Drawings/Rifle/280 Ackley Improved.pdf</a></p><p></p><p><a href="http://www.saami.org/PubResources/CC_Drawings/Rifle/280%20Remington%20-%207mm%20Express.pdf" target="_blank">http://www.saami.org/PubResources/CC_Drawings/Rifle/280 Remington - 7mm Express.pdf</a>.</p><p></p><p>When you do a comparison of the two you will see what the difference is.</p><p></p><p>keep in mind the .004 thousandths that most Smiths shorten the 280 Rem to chamber the "old wildcat version) when totaling the dimensions.</p><p></p><p>If this is still not enough, Call Dave Kiff @ PT&G (He made the reamers for Nosler), and with luck</p><p>he will tell the whole story.</p><p></p><p>Just to clarify, I am Passionate/anal about Head space and its importance for accuracy and safety</p><p>so I will chill as much as possible on this subject.</p><p> </p><p>Thanks</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1026211, member: 2736"] Hear are the two SAAME reamer drawings that may help. Look at the bottom drawing on each cartridge, It is the reamer dimensions (The top drawing is the Maximum dimensions for the loading of the commercial ammo. [url]http://www.saami.org/PubResources/CC_Drawings/Rifle/280%20Ackley%20Improved.pdf[/url] [url]http://www.saami.org/PubResources/CC_Drawings/Rifle/280%20Remington%20-%207mm%20Express.pdf[/url]. When you do a comparison of the two you will see what the difference is. keep in mind the .004 thousandths that most Smiths shorten the 280 Rem to chamber the "old wildcat version) when totaling the dimensions. If this is still not enough, Call Dave Kiff @ PT&G (He made the reamers for Nosler), and with luck he will tell the whole story. Just to clarify, I am Passionate/anal about Head space and its importance for accuracy and safety so I will chill as much as possible on this subject. Thanks J E CUSTOM [/QUOTE]
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