pyrodex p

[char2162]

i need to know if i can get by with this for the weekend in my 45-70 bc to shoot a buffalo match. it will be behind a 405 grain lead flat nose and .030 compression.

[quickdtoo]

Hodgdon has recommendations for loading Pyrodex in cartridges, they also have data for pellets.

Tim

http://www.hodgdon.com/PDF/muzzleloading_manual_2008.pdf?CHECKBOX_1=on

Pyrodex works best in straight walled cases, but it will work satisfactorily in bottle
necked cartridges as long as our warnings are observed.
WARNING: Never allow an air space in any cartridge loaded with Pyrodex. The loading
density must be 100% by light compression. 100% loading density may be
accomplished in two ways:
The case is filled with powder to a level that will provide light compression of the
powder (1/16” to 1/8”) when the bullet is seated. Bottle necked cases must be
loaded in this manner.
In straight walled cases, filler wads may be used to reduce the powder charge. This is
done by inserting card or Polyethylene wads between the base of the bullet and the
powder. Wads should be sized to the internal diameter of the cartridge case. The
loader must be careful to insure that there are no void spaces in the assembled cartridge.
NEVER use any other type of filler material. Be careful as loads are reduced.
At some point, the bullet will fail to exit the bore.
When loading cartridges with Pyrodex it is recommended the loader use a volumetric
powder measure designed for use with black powder, or consult the manufacturer(
s) of his powder measure for their recommendations for use with black powder
substitutes.
Pyrodex does produce a corrosive residue from combustion. Even though this fouling
is softer than the fouling produced by blackpowder, firearms should be cleaned after
each use. Hodgdon Powder Co. recommends the use of natural cleaning solvents.
Cartridge cases that have been fired using Pyrodex require special care. As soon as
possible after firing, cases should be de-primed and immersed in 50% water and
white vinegar. The acidity of the vinegar will neutralize the corrosive residues remaining
in the case. Care should be taken to limit the soaking time of the cases in the
vinegar to 10 minutes. Soaking for a longer time may cause etching of the brass case
resulting in shortened case life. Rinse cases with clear water, dry and polish in a tumbler
with corncob or walnut shell media.

[char2162]

i wasnt sure about the fineness of the pistol powder

[quickdtoo]

You can always call or email them and ask questions.

Tim

http://hodgdon.com/contactus.html

[coyotejoe]

For your application I would prefer the RS grade but there is no danger in substituting pyrodex P, try it, it may even be better than RS.

[LONGTOM]

I am glad the subject of using pyrodex powder in cartridges came up. I have been meaning to ask this question for a long time. We all know the warning about using black powder and their substitutes:"WARNING: Never allow an air space in any cartridge loaded with Pyrodex". The same things applies to muzzle loaders. This powder is made in pellet form by most of the powder companies in various shapes" ROUND - STICK - WITH A HOLE - WITHOUT A HOLE. These pellets do not fill a case as loose does. There is air around and in the case of the ones with holes in the middle there is air in side of them. It seems the two: LOOSE VERSES PELLETS: kind of counter dict each other. I know it is safe to load rounds with pellets, I have done it. Just wondering about the air issue in cartridges. Please enlighten me.


LONGTOM

[quickdtoo]

Hodgdon shows data for Pyrodex pellets in cartridges, see page 11 of the .pdf file I posted earlier.

Tim

PYRODEX PELLETS INMETALLIC CARTRIDGES
CARTRIDGE BULLET PELLETS USED VELOCITY PRESSURE CRIMP WAD
44 Rem Mag 240 SWC 1 - Pyrodex Pistol 1053 fps 17,100 CUP Y N
44/40 WCF 200 RNFP 1 - Pyrodex Pistol 943 fps 12,700 CUP Y N
45 Colt 230 RFNP 1 - Pyrodex Pistol 870 fps 9,600 CUP Y N
45 Colt 250 RFNP 1 - Pyrodex Pistol 787 fps 9,900 CUP y Y
45-70 Gov. 405 RNFP 1 - 50/50 989 fps 14,100 CUP Y Y
45-70 Gov. 405 RNFP 1 - 50/50 1015 fps 14,200 CUP Y N
45-70 Gov. 405 RNFP 2 - 50/30 1270 fps 27,200 CUP Y Y
45-70 Gov. 405 RNFP 2 - Pyrodex Pistol 1231 fps 21,900 CUP Y Y