Grains coversion to ounces...

[smokingunns]

Hi,

Does anyone one what the conversion rate is from a grain to an ounce (or other common weight)?

I'm just looking to do a calculation to see how many cartridges I can get from a pound of powder.

thanks,

 

[Rick Teal]

For reloading purposes the avoir dupois system is used, and there are 437 1/2 grains per ounce (7000 per pound) - don't ask me about metric.

For precious metals the troy system is used, but I won't get into that.

 

[scotty]

http://www.handloads.com/calc/loadingCosts.asp

 

[GSXRMyers]

1 grain = 0.002285714 ounce (avbd)(oz)
1 grain = 0.002083333 ounce (troy)(ozt)

 

[604shooter]

http://www.onlineconversion.com/

 

[smokingunns]

Thanks everyone!

Last question...on an average, how many grains are in a factory load .45acp and how many for a factory load .40SW?

 

[RePete]

1 grain = 0.002285714 ounce (avbd)(oz)
1 grain = 0.002083333 ounce (troy)(ozt)

Troy ounce is used for gold but for reloading we use Avoirdupois.

7000 grains in 1 pound.

 

[hoochie]

why are you trying to convert using ounces? 28g/ ounce, 16Oz/ lb.
It is much easier to take the given powder charge and divide it into 7000 ( the per pound measurement).

lets say you want 48gr charge:
7000/48= 145 rounds worth of powder.

 

[buckshot]

Thanks everyone!

Last question...on an average, how many grains are in a factory load .45acp and how many for a factory load .40SW?

The number of grains in a load will depend on the powder being used. I have never loaded for .40s&W but for .45acp I have used various powders and depending on the powder and the desired velocity I am trying to reach I have used between 3.9 grains and up to 8 grains. But I should add those charges were with different powders, most powders in .45acp wont have that large of a gap between the minimum and the maximum charge so its very important to have accurate and reliable loading data when working on a load for your firearms.

 

[Curt]

what the heck am I doing here. oops

 

[hakx]

7000 grains = 1lb
16 oz = 1lb

7000 / 16

1oz = 437.5 grains

 

[sunray]

"...how many grains are in a factory load..." Ammo makers don't release that info. They load using whatever powder lot they're using to get a desired velocity with a particular bullet weight. They don't use powders reloaders can get either. However, Lyman loading manuals give a factory duplication load.

 

[Grizz Axxemann]

I get just over 1000 rounds of 10mm from a pound of WSF. 6.5grs and a 180 FMJ on top.

 

[svt-40]

I use a scale that has grains, grams and ounces, but you can always ask google for converstion too.

 

[smokingunns]

Thanks Everyone for the great feedback!

I'm wondering why I didn't join this forum before...

Scotty, great link! Anyone who is looking to get into reloading should definitely book mark this link: http://www.handloads.com/calc/loadingCosts.asp

Cheers,

 

[asusual]

I find the amount of grain in a pound varies with the kind of powder. I've tried counting 7000 of them, hard on the eyes

 

[NAA]

1 pound = 7,000 grains....

My pet load for the .300 Win Mag is 70 grains of IMR4350 powder on top of a 180 grain projectile.

So 1 pound of powder = 7,000 grains.

70 grains per loading = 100 loaded rounds per pound of powder.

 

[NAA]

I find the amount of grain in a pound varies with the kind of powder. I've tried counting 7000 of them, hard on the eyes

You are joking, right?