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Offline argie1891

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black powder compression
« on: January 01, 2012, 09:30:45 PM »
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Offline argie1891

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Re: black powder compression
« Reply #1 on: January 01, 2012, 09:34:13 PM »
dont know what happened i started a message and the next thing i knew it posted without me clicking on it.. anyway how much compression of black powder is correct. i have heard some shooters say they compress the powder with a special die to many pounds of pressure. usually i let the bullet compress the powder. i would kinda like to know what is best. i can make a die to compres the powder but not sure i really need to. argie1891
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Offline Seth Hawkins

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Re: black powder compression
« Reply #2 on: January 02, 2012, 01:28:49 AM »
Use a die to compress the powder.
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Offline Ranch13

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Re: black powder compression
« Reply #3 on: January 02, 2012, 04:18:40 AM »
The correct amount of compression is however much it takes to compress the charge of powder until you can seat the bullet.
Seth's right use something other than the bullet to compress the powder.
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Offline argie1891

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Re: black powder compression
« Reply #4 on: January 02, 2012, 11:54:57 AM »
i am going to make a compression die. i was talking to one target shooter and he says he uses 240 lbs of pressure, and he has a special scale to measure the amount he compresses it.calims he gets much better accuracy and the  extra powder in his 45-90 with 500 gr. bullets holds up better at 500 yards and more. he told me that if you pull a bullet the powder has to be taken out with a pick. i was just wondering if there is a point that it  becomes dangerous. the first die i am making is for my 43 spanish i think i will set it up and stop when it becomes hard to compress.  thanks for your  reply argie1891
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Offline Ranch13

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Re: black powder compression
« Reply #5 on: January 02, 2012, 12:00:12 PM »
You can actually bulge a case and wreck it with to much compression.
 Compressing other than just a bit to get enough room for your wads and bullets in bottleneck(such as your 43) cases isn't a real good idea, and will likely cause you some problems with accuracy.
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Offline Lead pot

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Re: black powder compression
« Reply #6 on: January 02, 2012, 02:49:32 PM »
I would suggest starting with no compression and load three rounds and shoot it on paper and add 2 grains to the next three rounds and shoot again till you see a dip ( smallest) in your group.
Three rounds per group is enough to see what a load is doing till you see a tight group.
Most generally a bottle necked black powder cartridge will shoot better with very light compression.
You will just have to work it out yourself.
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Offline argie1891

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Re: black powder compression
« Reply #7 on: January 02, 2012, 05:01:03 PM »
thanks i will take your advice and give it a try i have 2 different moulds for this caliber and was going to try to size some 11mm mauser bullets down and see if that works, probably wont but what the heck cant hurt to at least try. will post results if it ever warms up so i can get to the range. argie1891
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Offline Seth Hawkins

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Re: black powder compression
« Reply #8 on: January 03, 2012, 02:28:30 AM »
The purpose of compressing the powder (generally) is not so that you can get more powder in, but to get the powder to "behave" in a desired manner.


A powder compression die looks like a bullet seating die in that it has a stem with a lock ring that is used to lock the stem in position once the desired depth is determined.
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Offline argie1891

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Re: black powder compression
« Reply #9 on: January 03, 2012, 08:15:57 AM »
i amde the die last night on my lathe it is completly adjustable and even thou i havent tried it out on loading ammo i know it will work. argie1891
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