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Rifles, Reloading, Optics, Equipment
Reloading
Overpressure Signs ?
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<blockquote data-quote="Gunpoor" data-source="post: 951732" data-attributes="member: 8358"><p>I have only pushed one rifle to the point of seeing over-pressure indicators (plural). A little cratering can be a sign of too much chamber pressure but by itself doesn't even get my attention, what really gets me to sit up and take notice is a shiny case head and sticky extraction. When you have these you are on the very threshold of DANGER. As I said before I pushed one rifle to this pressure point and I was about 2 grains over max published load in the manual I was using. BTW, I saw the primers starting progressively getting flatter as I shot increased charges.</p><p></p><p>I don't consider a chronograph a very reliable machine to measure chamber pressure, though I am sure I am in the minority. I have and have had rifles that if I were to push them to the published velocity could very well have had a kaboom. There are too many variables and variations in barrels that contribute to velocity.</p></blockquote><p></p>
[QUOTE="Gunpoor, post: 951732, member: 8358"] I have only pushed one rifle to the point of seeing over-pressure indicators (plural). A little cratering can be a sign of too much chamber pressure but by itself doesn't even get my attention, what really gets me to sit up and take notice is a shiny case head and sticky extraction. When you have these you are on the very threshold of DANGER. As I said before I pushed one rifle to this pressure point and I was about 2 grains over max published load in the manual I was using. BTW, I saw the primers starting progressively getting flatter as I shot increased charges. I don't consider a chronograph a very reliable machine to measure chamber pressure, though I am sure I am in the minority. I have and have had rifles that if I were to push them to the published velocity could very well have had a kaboom. There are too many variables and variations in barrels that contribute to velocity. [/QUOTE]
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Overpressure Signs ?
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