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Rifles, Reloading, Optics, Equipment
Reloading
Load development with new brass?
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<blockquote data-quote="gte901m" data-source="post: 1451591" data-attributes="member: 80740"><p>Additional thoughts:</p><p></p><p>Next time you get new brass, seat a fired primer in it backwards and measure the water capacity. Repeat for fired brass, and that will give you an idea how much case volume changes from new to fired. The change in water capacity is not a 1:1 with powder, but it will let you know if volume is changing by .2 or 1.2 grains of water. If it changes by a small amount, powder should change by a small amount.</p><p></p><p>Neck tension on new brass is normally a thousand or so tighter than resized brass. Changes in neck tension can have an impact. I eliminate this by running an expander through the neck on new brass.</p></blockquote><p></p>
[QUOTE="gte901m, post: 1451591, member: 80740"] Additional thoughts: Next time you get new brass, seat a fired primer in it backwards and measure the water capacity. Repeat for fired brass, and that will give you an idea how much case volume changes from new to fired. The change in water capacity is not a 1:1 with powder, but it will let you know if volume is changing by .2 or 1.2 grains of water. If it changes by a small amount, powder should change by a small amount. Neck tension on new brass is normally a thousand or so tighter than resized brass. Changes in neck tension can have an impact. I eliminate this by running an expander through the neck on new brass. [/QUOTE]
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Load development with new brass?
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