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Rifles, Reloading, Optics, Equipment
Reloading
Concentricity - setting up dies - runout
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<blockquote data-quote="Bart B" data-source="post: 507031" data-attributes="member: 5302"><p>I do know for a fact that the lubricity of the case in a full length sizing die will effect the case headspace after sizing it. More and slipperier lube means it'll be shorter; less and more sticky and it'll be longer. Every press known to man has some spring in it, but my Rockchuckers are at the lower end.</p><p></p><p>I used to get a 1 to 2 thousandths (sometimes more) when rolling clean cases on a pad coated with traditional lube. After switching to a 60%-40% mix of STP and Hoppe's No. 9 with fifteen drops of it dribbled on a foam liner in a coffee can tumbled by a Thumblers Tumbler half full of cases for 15 minutes, they were unifomly lubed to keep sized case headspace spread to under a thousandth.</p></blockquote><p></p>
[QUOTE="Bart B, post: 507031, member: 5302"] I do know for a fact that the lubricity of the case in a full length sizing die will effect the case headspace after sizing it. More and slipperier lube means it'll be shorter; less and more sticky and it'll be longer. Every press known to man has some spring in it, but my Rockchuckers are at the lower end. I used to get a 1 to 2 thousandths (sometimes more) when rolling clean cases on a pad coated with traditional lube. After switching to a 60%-40% mix of STP and Hoppe's No. 9 with fifteen drops of it dribbled on a foam liner in a coffee can tumbled by a Thumblers Tumbler half full of cases for 15 minutes, they were unifomly lubed to keep sized case headspace spread to under a thousandth. [/QUOTE]
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Concentricity - setting up dies - runout
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