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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Help On Understanding Neck Dimensions?
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<blockquote data-quote="MAELTY" data-source="post: 36112" data-attributes="member: 1197"><p>The gun: Win Mod 70 7mmWSM (factory barrel, pillar bedded and tiggerwork done)</p><p></p><p>Outside neck dimension of new, unfired cases: .316</p><p></p><p>Outside neck dimension of fired case: .324</p><p> </p><p>Outside neck dimension after resizing using RCBS dies: .314</p><p></p><p>Outside neck dimension when loaded: .316</p><p></p><p>These numbers are an average of 20 cases.</p><p></p><p>When using 162 AMAX's and 72 grs of H1000 the gun shoots .75" @ 100 on most days.</p><p></p><p>Questions:</p><p>1) Are these dimensions within the ballpark?</p><p>2) When I use my Redding bushing die (.314 though they come out at .312 which Redding says can happen on there tech site) the loaded shells still measure .316 on the neck and the gun produces the same results.</p><p>Am I using the correct bushing? </p><p></p><p>Thanks </p><p></p><p>Tom</p></blockquote><p></p>
[QUOTE="MAELTY, post: 36112, member: 1197"] The gun: Win Mod 70 7mmWSM (factory barrel, pillar bedded and tiggerwork done) Outside neck dimension of new, unfired cases: .316 Outside neck dimension of fired case: .324 Outside neck dimension after resizing using RCBS dies: .314 Outside neck dimension when loaded: .316 These numbers are an average of 20 cases. When using 162 AMAX's and 72 grs of H1000 the gun shoots .75" @ 100 on most days. Questions: 1) Are these dimensions within the ballpark? 2) When I use my Redding bushing die (.314 though they come out at .312 which Redding says can happen on there tech site) the loaded shells still measure .316 on the neck and the gun produces the same results. Am I using the correct bushing? Thanks Tom [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Help On Understanding Neck Dimensions?
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