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Rifles, Reloading, Optics, Equipment
Reloading
Moving Shoulders on a Case
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<blockquote data-quote="boomtube" data-source="post: 403260" data-attributes="member: 9215"><p>"if I'm using a FL sizing die to bump the shoulder and size the neck is that all that is happening or is it also sizing the case all the way down to the case head?"</p><p> </p><p>We can't get a 'shoulder bump die'. FL, Body bump and neck dies are our only options. Sizing with an FL die to 'bump' the shoulder is indeed Full Length resizing. Neck dies are supposed to only touch the neck, but some slip up and get bored short so it is possible - rarely - that a neck die can "bump" a shoulder and that will almost certainly cause the shoulder to swell outward at the body junction. All a body bump die consists of is an FL die that has the neck bored large enough to not touch the fired neck so, yes, it will size to the case head. </p><p> </p><p>No matter what you've been told about neck sizing, it's not automatically better for accuracy nor case life than FL sizing. Only experimentation with both methods will tell any of us which works better in an individual rifle, and even then the results only apply to the tested load. </p><p></p><p>No matter what you've been told about expander buttons dragging necks or shoulders forward very much, you now know it's not true, right?</p></blockquote><p></p>
[QUOTE="boomtube, post: 403260, member: 9215"] "if I'm using a FL sizing die to bump the shoulder and size the neck is that all that is happening or is it also sizing the case all the way down to the case head?" We can't get a 'shoulder bump die'. FL, Body bump and neck dies are our only options. Sizing with an FL die to 'bump' the shoulder is indeed Full Length resizing. Neck dies are supposed to only touch the neck, but some slip up and get bored short so it is possible - rarely - that a neck die can "bump" a shoulder and that will almost certainly cause the shoulder to swell outward at the body junction. All a body bump die consists of is an FL die that has the neck bored large enough to not touch the fired neck so, yes, it will size to the case head. No matter what you've been told about neck sizing, it's not automatically better for accuracy nor case life than FL sizing. Only experimentation with both methods will tell any of us which works better in an individual rifle, and even then the results only apply to the tested load. No matter what you've been told about expander buttons dragging necks or shoulders forward very much, you now know it's not true, right? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Moving Shoulders on a Case
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