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Rifles, Reloading, Optics, Equipment
Reloading
To bush or mandrel
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<blockquote data-quote="Lonewolf74" data-source="post: 2132885" data-attributes="member: 96274"><p>I'm still trying to grasp some of this myself and am unable to clarify for you. I haven't gone down the road of experimenting with different neck tension and interference but do believe it's the next step to a higher level.</p><p> </p><p>My numbers are based off a cartridge I'm currently playing with so it's fresh in my mind and also based off perfect conditions where you get .001 spring back with each sizing step. I believe experimentation would be needed to achieve real results based on spring back. I could also see where spring back could be greater in one direction then the other. It would make sense to me that the neck would have a tendency to spring back more (outward) after sizing down the neck diameter then it would to spring back (inward) after expanding. Of course this could be a nearly immeasurable difference or wrong all together.</p><p></p><p>It does make sense to me in what Mikecr states that anything more then the spring back of the brass is going to yield to the bullet during seating, just as if it was expanded by a mandrel. Unless the brass neck is strong enough to size (squeeze) the bullet which I doubt and don't think would be desirable</p></blockquote><p></p>
[QUOTE="Lonewolf74, post: 2132885, member: 96274"] I’m still trying to grasp some of this myself and am unable to clarify for you. I haven’t gone down the road of experimenting with different neck tension and interference but do believe it’s the next step to a higher level. My numbers are based off a cartridge I’m currently playing with so it’s fresh in my mind and also based off perfect conditions where you get .001 spring back with each sizing step. I believe experimentation would be needed to achieve real results based on spring back. I could also see where spring back could be greater in one direction then the other. It would make sense to me that the neck would have a tendency to spring back more (outward) after sizing down the neck diameter then it would to spring back (inward) after expanding. Of course this could be a nearly immeasurable difference or wrong all together. It does make sense to me in what Mikecr states that anything more then the spring back of the brass is going to yield to the bullet during seating, just as if it was expanded by a mandrel. Unless the brass neck is strong enough to size (squeeze) the bullet which I doubt and don’t think would be desirable [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
To bush or mandrel
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