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Rifles, Reloading, Optics, Equipment
Reloading
Black soot build up on case heads
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<blockquote data-quote="StumpGrinder" data-source="post: 1941347" data-attributes="member: 114832"><p>I have never used that powder but some powders burn cleaner than others. I usually get powder residue on the case mouth with necked cases because of where they seal when fired. If powder residue is getting clear back to the bolt face either the case is not sealing in the chamber due to low pressure or the primer pocket is leaking. The primer should have stiff resistance when seating. I use varget and the new copper removing powders. I also find the cases come out cleaner and my loads more accurate when I load near max. When working up a load I approach max at 1/2 grain incrimints till the primer showes signs of flattening or max accuracy opens up. If primer starts to flatten first I back of 1/2 to 1 grain. If this only happens on 1 or 2 cases check for hair line cracks in the case body.</p></blockquote><p></p>
[QUOTE="StumpGrinder, post: 1941347, member: 114832"] I have never used that powder but some powders burn cleaner than others. I usually get powder residue on the case mouth with necked cases because of where they seal when fired. If powder residue is getting clear back to the bolt face either the case is not sealing in the chamber due to low pressure or the primer pocket is leaking. The primer should have stiff resistance when seating. I use varget and the new copper removing powders. I also find the cases come out cleaner and my loads more accurate when I load near max. When working up a load I approach max at 1/2 grain incrimints till the primer showes signs of flattening or max accuracy opens up. If primer starts to flatten first I back of 1/2 to 1 grain. If this only happens on 1 or 2 cases check for hair line cracks in the case body. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Black soot build up on case heads
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