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Rifles, Reloading, Optics, Equipment
Reloading
Is This Excessive Pressure??
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<blockquote data-quote="Stiletto150" data-source="post: 1493039" data-attributes="member: 70044"><p>my .02 cents. I have been working up loads for a 270-4831sc and 300-H1000. in the 300. 3 different brass, and 2 different bullets (copper and lead). In all caliber and bullet combinations. My accurate load is usually .5-1 gn. less than when pressure starts appearing. And have had similar velocity losses as you. Most of my testing has been at 70-80F. One thing I haven't tested which I know may happen in the field is cooking the second round and the bullet shift after firing. I have however seen significant velocity changes end up at the same POI when using a chrono in my testing.</p></blockquote><p></p>
[QUOTE="Stiletto150, post: 1493039, member: 70044"] my .02 cents. I have been working up loads for a 270-4831sc and 300-H1000. in the 300. 3 different brass, and 2 different bullets (copper and lead). In all caliber and bullet combinations. My accurate load is usually .5-1 gn. less than when pressure starts appearing. And have had similar velocity losses as you. Most of my testing has been at 70-80F. One thing I haven't tested which I know may happen in the field is cooking the second round and the bullet shift after firing. I have however seen significant velocity changes end up at the same POI when using a chrono in my testing. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Is This Excessive Pressure??
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