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#1
05-05-2015, 12:34 PM
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Powder PSI
I am wondering about PSI(pounds per square inch) on reloads regarding the powder. We see so many reloading charts about type of powder, grain of bullet, primers, crimp, etc. But when a bullet is seated while reloading and compresses the powder is there a measurement on the PSI pressure on the actual powder. And is it different in different loads? Is the actual PSI calculable or is it just "load by the chart".
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CBOB0716 "The most basic right that we have emanates from our Creator and it is that unalienable right to life. We stand firmly on the principle that from conception until the last breath is drawn, life is sacred.” Political Correctness is a doctrine, recently fostered by a delusional, illogical minority and promoted by a sick mainstream media, which holds forth the proposition that it is entirely possible to pick up a piece of shit by the clean end! 
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#2
05-05-2015, 01:30 PM
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 I get what you are asking but I don't think most rounds actually compress the powder when seating the bullet. I will have to get the calipers out and do some figure'n but any specific load you are thinking about???
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#3
05-05-2015, 03:16 PM
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Quote:
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CBOB0716 "The most basic right that we have emanates from our Creator and it is that unalienable right to life. We stand firmly on the principle that from conception until the last breath is drawn, life is sacred.” Political Correctness is a doctrine, recently fostered by a delusional, illogical minority and promoted by a sick mainstream media, which holds forth the proposition that it is entirely possible to pick up a piece of shit by the clean end!
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#4
05-05-2015, 03:26 PM
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I get ya... I will ask my FIL about this. He is a rifle guy and been loading longer than I have. You are the first person to ever ask this on a forum that I am aware of. You must be one of those thinkers or something 
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#5
05-05-2015, 03:52 PM
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hehehehe...always need to know the specifics.
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CBOB0716 "The most basic right that we have emanates from our Creator and it is that unalienable right to life. We stand firmly on the principle that from conception until the last breath is drawn, life is sacred.” Political Correctness is a doctrine, recently fostered by a delusional, illogical minority and promoted by a sick mainstream media, which holds forth the proposition that it is entirely possible to pick up a piece of shit by the clean end!
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#6
05-05-2015, 04:08 PM
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Most loads aren't compressed. Usually they will have an abbreviation CL or something to indicate it is compressed as compression can increase the PSI quickly and dangerously. Some types of powder may take up more space in the case but very few actually squeeze the bullet down far enough to compress the powder. When creating a compressed load you fill the powder according to the weight of the charge which will fill above where the bottom of the bullet would seat. Then the projectile being seated will compress the load when seated to the OAL.
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CBOB0746 NRA Life Member Florida CWL Since 1992 Last edited by Gatorade; 05-05-2015 at 04:11 PM.
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