Question on powder??


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kudu
July 4, 2013, 03:35 PM
I came across a jug of about 5 pounds of what is labeled WC872 powder. Looks like a surplus powder, fine ball powder with flats. What is this equivalent to? Probably a large volume rifle powder?

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243winxb
July 4, 2013, 04:18 PM
WC 872 20mm TP M55, HEI M56 http://benchrest.com/showthread.php?83075-Powder-manufactuers I have no idea??

SlamFire1
July 4, 2013, 04:19 PM
Pat's Reloading recommends WC 872 for 50 Cal BMG

There is this thread on it on a different forum:


http://thefiringline.com/forums/showthread.php?t=503784

kudu
July 4, 2013, 05:07 PM
I kind of figured it was for large case rifles, I "inherited" a bunch of reloading supplies a couple years ago when a good friend passed away. He was into big bore guns like Weatherbys. His widow just told me to "get this stuff out of here."

mtrmn
July 4, 2013, 06:23 PM
This page says you can somewhat use H870 or AA8700 data. Scroll down to the bottom of the list.... If you have a big magnum I'm sure it would be useful.
http://www.gibrass.com/gunpowder.html

243winxb
July 4, 2013, 09:35 PM
http://www.gd-ots.com/Brochures/BALL%20POWDER%20Propellants.pdf Approved for public release 5/21/1998 St. Marks Powder 7121 Coastal Highway - Crawfordville, FL 32327 - (850)-577-2264 - Fax (850)-577-2263 - www.gd-ots.com - Approved for public release 5/21/1998
Powder Designation Cartridge
SPI Igniter Artillery
OBP® 126 .50 Cal. Blank M1A1
WC 814 5.56mm Blank M200
WC 818 7.62mm Blank M82
WC 815 60mm Mortar
WC 819 81mm Mortar
WPR® 260 5.56mm SRTA M862
WPR® 270 9mm NATO HPT
WPR® 289 9mm NATO M882
WPR® 293 9mm Subsonic
WC 687 7.62 X 39mm Ball
WC 815 60mm Mortar
WC 816 120mm Mortar Igniter Propellant
WC 864 MACS Igniter
WC 827 7.62mm SLAP M948, SLAP-Tracer M959
SMP® 842 5.56mm Non–toxic
WC 844 5.56mm Ball M193 & M855, Tracer M196
WC 844T 5.56mm Tracer M856
WCR® 845 5.56mm Ball M855, Tracer M856, M995
WC 846 7.62mm Ball M80, Tracer M62
WC 846S 7.62mm Ball M80, Tracer M62
WC 846 + CaCO3 7.62mm Ball M80
WC 750 7.62mm Match M118 & M82
WC 855 30mm AAH TP M788, HEDP M789
WC 856 .50 Cal. SLAP M903, SLAP-Tracer M962
WC 857 .50 Cal. Tracer M17
WC 858 20mm HPT M54
WC 859 20mm Phalanx MK149
WC 860 .50 Cal. Ball M33
WC 860 + CaCO3 .50 Cal. Ball M33
WC 863 120mm Mortar Main Charge
WC 866 20mm PIVAD M940
WC 867 20mm MPC PGU 28/B
WC 868 20mm Improved PGU 28/B
WC 869 25mm M910 TPDS-T
WC 872 20mm TP M55, HEI M56
WC 886 25mm M791 APDS-T
WC 886L 25mm M919
WC 890 25mm HEI-T M792, TP-T M793
WC 891 25mm API PGU 20/U
WC 895 30mm GAU/8A TP PGU15, API PGU14, AIPGU13
SMP® 992 155mm MACS Decoppering

41 Mag
July 6, 2013, 07:04 AM
IT works in the bigger cases fair depending on the actual caliber. Say for the 7mm STW you can get decent results with the heavier bullets, but not so great with lighter ones.

In the RUM's results will vary again depending on bullet weights.

With smaller standard calibers and cast bullets a lot of folks use it for informal target loads and simply for practice.

Once caveat is that it leaves a lot of carbon which is sometimes a pain to scrub out if left in the bore and chamber very long.

ArchAngelCD
July 6, 2013, 07:16 AM
I came across a jug of about 5 pounds of what is labeled WC872 powder. Looks like a surplus powder, fine ball powder with flats. What is this equivalent to? Probably a large volume rifle powder?
Like said above, that powder is very slow and meant for the 20mm.

If you can find some WC820 that's good for the 30 Carbine and Magnum handgun rounds.
WC844 is meant for the 223/5.56mm
WC846 is meant for the 308/7.62mm

kudu
July 6, 2013, 09:18 AM
I haven't been able to find any data on AA8700, I have a 45-70 that I could run 400-500gr bullets out of if it would be feasible. I'm real hesitant to just fill up a 45-70 case and seat a heavy bullet on top of it to try out. :D

My Marlin 45-70 has a 24" barrel, if I could get a little bit of data I might be able to have a use for the powder.

rcmodel
July 6, 2013, 12:56 PM
It is way too slow burning to work in 45-70.
Even a case full with room left for a 500 grain bullet would give very low pressure and velocity.

Even high performance 'Ruger #1 loads' use nothing slower then Varget for best performance.

About all it will work in is the .50 BMG, or over-bore 7mm to 338 cal magnums.

rc

ArchAngelCD
July 7, 2013, 03:19 AM
Funny thing is, even though the 45=70 uses a very big case that old straight walled cartridge uses the fastest rifle powders available. In reality back in the day Unique and 2400 were very popular fir loading the 45-70. I use either AA5744 or 4198 in the 45-70.

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