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Rifles, Reloading, Optics, Equipment
Reloading
Expander die question
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<blockquote data-quote="BrentM" data-source="post: 2109037" data-attributes="member: 61747"><p>I use a mandrel and never us a ball any more. It can and does happen, where the process of running the expanding ball through the case slightly stretches the OAL, mainly the shoulder.</p><p></p><p> I prefer to run .002 on the shoulder set back and round .002-003 for tension on a hunting load. Like you I am anal about the bullet seating process so I seat a little, turn, seat. My concentricity is usually .0015 or less. .001 shoulder set back is too tight imho. </p><p></p><p>Make sure you are lightly chamfering the inside and outside of the neck/mouth to remove any burs or sharp edges. I've seen issues with outside edge creating a false tight chamber and messing up pressure. </p><p></p><p>Last, double check your primers. Sometimes they have been exposed to moisture and won't know. It'll mess up sd's</p></blockquote><p></p>
[QUOTE="BrentM, post: 2109037, member: 61747"] I use a mandrel and never us a ball any more. It can and does happen, where the process of running the expanding ball through the case slightly stretches the OAL, mainly the shoulder. I prefer to run .002 on the shoulder set back and round .002-003 for tension on a hunting load. Like you I am anal about the bullet seating process so I seat a little, turn, seat. My concentricity is usually .0015 or less. .001 shoulder set back is too tight imho. Make sure you are lightly chamfering the inside and outside of the neck/mouth to remove any burs or sharp edges. I've seen issues with outside edge creating a false tight chamber and messing up pressure. Last, double check your primers. Sometimes they have been exposed to moisture and won't know. It'll mess up sd's [/QUOTE]
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Reloading
Expander die question
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