powder densities
hamrdog
anyone know where i can find a chart showing the relative densities of
smokeless powder? i'd like to make up some reduced loads in a few calibers,
but i want to fill as much of the case as possible (i don't want to use any
filler).
any help is appreciated.
andy b.
------------------------------------------------------------------------
You can learn about rec.guns at http://doubletap.cs.umd.edu/rec.guns
Peter Torvik
> anyone know where i can find a chart showing the relative densities of
The Lee handbook has the data you are looking for. On pp162 and 163 he
gives the VMD (volume measuring density) form a great many powders.
However, there appears to be a typo. The book says the VMD is the grains
per cubic centimeter. Actually, the numbers given appear to be the
reciprocal of that, i.e., the cubic centimeters per grain.
Peter Torvik
#
Clark Magnuson
From:
7:47
Subject: Re: All gunpowder rates?To: Clark Magnuson <cmag...@home.com>
Newsgroups: rec.guns
In article <7mfaa5$oqr$1...@xring.cs.umd.edu> you wrote:
# I know there is a list of all brands of gunpowder in order of burning
# speed. Can you help?
# Clark
This is a burn rate -vs- density chart.
Fast burning powders are at the top.
Dense powders are at the right.
Powders introduced in the last 2-3 years may not appear on this chart
.40 .50 .60 .70 .80 .90
1.00 1.10
|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
Hodg Clays x
Vihta N310 x
Herc Red Dot x
Herc Bullseye x
IMR 700X . . x . . . . . . . .
.. .
.. . .
Accur AA2 x
Vihta N320 x
Win 231 x
Hodg HP-38 x
Win WST . . . x . . . . . .
.. .
.. . .
Hodg Intl Clays x
Herc Green Dot x
Vihta N330 x
IMR 7625 x
IMR PB . . . x . . . . . .
.. .
.. . .
Win WSL x
Hodg Univ Clays x
Herc Unique x
Win WAP x
Accur AA5 . . . . . . . . . .x
.. .
.. . .
Win WSF x
Vihta N340 x
Win 540
x
Herc Herco x
Hodg HS6 . . . . . . . . . .
x .
.. . .
IMR 4756 x
Vihta 3N37 x
IMR 800X x
Vihta N350 x
Hodg HS7 . . . . . . . . . .
.. x.
.. . .
Herc Blue Dot x
Accur AA7
x
Win 571
x
Herc 2400 x
Vihta N110 . . . . . . . .x . .
.. .
.. . .
Accur
AA9 x
Hodg 110
x
Win 296
x
IMR 4759 x
Vihta N120 . . . . . . . . . x .
.. .
.. . .
IMR 4227 x
Hodg 4227 x
Vihta N130 x
Accur 1680
x
Vihta N133 . . . . . . . . . . x
.. .
.. . .
IMR 4198 x
Hodg 4198 x
Hodg 4198SC x
Herc RL7 x
Accur 2015BR . . . . . . . . . .
x .
.. . .
IMR 3031 x
Hodg 322 x
Accur 2230
x
Win 748
x
Hodg 335 . . . . . . . . . .
.. .
..x . .
Hodg BL-C(2)
x
Accur 2460
x
IMR 4895 x
Hodg 4895 x
Herc RL12 . . . . . . . . . . .
x .
.. . .
Vihta N135 x
IMR 4064 x
Accur 2520
x
IMR 4320
x
Vihta N140 . . . . . . . . . .
x .
.. . .
Accur
2700 x
Herc RL15 x
Hodg
380 x
Win
760 x
Hodg 414 . . . . . . . . . .
.. x
.. . .
Vihta N150 x
Accur 4350 x
IMR 4350 x
Hodg 4350 x
Hodg 4350SC . . . . . . . . . . .
x .
.. . .
Herc RL19 x
Vihta N160
x
IMR 4831 x
Hodg
450 x
Hodg 4831 . . . . . . . . . . .
x .
.. . .
Hodg
4831SC x
IMR 7828 x
Accur
3100 x
Vihta N165 x
Herc RL22 . . . . . . . . . .
..x .
.. . .
Win WMR
x
Hodg
1000 x
Vihta
170 x
Hodg 870
x
Accur
8700 x
|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
.40 .50 .60 .70 .80 .90
1.00 1.10
----------------------------------------------------------------------------
| Carl Vickery | ca...@ti.com (972) 480-1538
|
| Texas Instruments - ASIC Software | "Against stupidity the gods
themselves
|
| Dallas, TX | contend in vain" - Friedrich
Schiller
|
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JOHN GARAND
WROTE:
#i've seen all the charts that list smokeless powder burn-rates, but does
#anyone know where i can find a chart showing the relative densities of
#smokeless powder? i'd like to make up some reduced loads in a few calibers,
#but i want to fill as much of the case as possible (i don't want to use any
#filler).
#
#any help is appreciated.
#
#andy b.
You might check the Lee website. IIRC, they used to supply such data
with their Auto Disk and (perhaps) their powder measuring cup sets.
The data may also be in Lee's reloading book.
Jeff/addesign
#i've seen all the charts that list smokeless powder burn-rates, but does
#anyone know where i can find a chart showing the relative densities of
#smokeless powder? i'd like to make up some reduced loads in a few calibers,
#but i want to fill as much of the case as possible (i don't want to use any
#filler).
Haven't seen such a table. For pistol or rifle? What calibers? Some of
the shotgun powders are quite versatile, and quite light. Red Dot can
be used in amny pistol and rifle loads, and will take up more space
than the fine ball powders, like 231.
Jeff/addesign
NRA Certified RSO
ISRA,Tuesday Night Irregular Rifles, High Power League
Ken Marsh
These are easy enough to find for shotgun powders, as they have had
progressive reloaders with charge bars and bushings that throw powder by
volume. If you look at the powder manufacturer's reloading pamphlets,
some of them have guides of of cc bushing to use for what grain weight
desired.
In addition Lee publishes loads that are used with his powder dipper set,
for all kinds of powders.
The problem I have with all of these is that they are often on the
conservative side, the Lee conversions to the point that one is almost
loading squibs. Richard Lee counters that density and weight changes
with absortion of humidity; that doesn't change the fact that one powder
measured with a scoop varies as much as half a grain from the previous;
with a scale, it is as consistant as you care to take the time to make
it.
Ken.
hamrdog <ham...@ptdprolog.net> wrote:
#i've seen all the charts that list smokeless powder burn-rates, but does
#anyone know where i can find a chart showing the relative densities of
#smokeless powder? i'd like to make up some reduced loads in a few calibers,
#but i want to fill as much of the case as possible (i don't want to use any
#filler).
--
-------------------------------------------------------------------------
Mail: kmarsh at charm dot net | Edit a binary .INI file, then tell
WWW: http://www.charm.net/~kmarsh | me that UNIX is too complicated.
-------------------------------------------------------------------------
Richard A. Victor
densities. He refers to it as Volume Measuring Density (VMD) and
says..."The VMD number is the grains per cubic centimeter." I think
it should read..."The VMD number is the cubic centimeters per grain."
Also the Nosler Reloading Guide shows the Load Density for
each listed load. Load Density is defined as "The weight of the
powder charge, expressed in grains, divided by the volume of the
cartridge case, also expressed in grains. The cartridge case volume
is obtained by determining the amount of water the case will hold when
the bullet is seated to the SAAMI suggested maximum cartridge length."
diick
On 19 Dec 2000 19:25:20 -0500, "hamrdog" <ham...@ptdprolog.net>
wrote:
> ...
Lief Erickson
back are 6-10 pages of density data.
Ron Seiden
Richard A. Victor <Ric...@Victor.com> wrote in message
news:93k24tge50hpcapbt...@4ax.com...
# The book Modern Reloading by Richard Lee has a chart of
# densities . . .
Speaking of which, he also states that, all else being equal (is it ever?),
the greater the load density (more completely filled case), the better the
accuracy. Can anyone here comment on that? I took it as one more factor in
choosing powders.
greg mushial
wrote:
#i've seen all the charts that list smokeless powder burn-rates, but does
#anyone know where i can find a chart showing the relative densities of
#smokeless powder? i'd like to make up some reduced loads in a few calibers,
#but i want to fill as much of the case as possible (i don't want to use any
#filler).
<snip>
A useful list of densities can be found in Mic McPherson's Metallic
Cartridge Reloading (mine's 3rd ed) - over an above the standard
material denisities, he gives packing densities for lightly,
significantly and maximally packed charges (ie, 6" drop tube,
830psi and 3220psi) - for 100+ current powders.
greg mushial
RCBS.Load information available at www.gmdr.com
hamrdog
i'm on a mission to get the Lee manual.
happy holidays.