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# Need Help With a Math Problem!!

1. ### cziv

402
0
Mar 14, 2009
OH
I ususally mix two powders together at a 1 to 1 ratio.

I had a large amount of powder given to me and I didn't have equal parts and having a brainfart, I mixed them together and now I'm stuck with a difficult math problem.

Here it is.

I mixed 16 ounces of X with 6 ounces of Y giving me a non- 50/50 mixture. I found another 6 ounces of Y today.

How much of the XY blend would I have to siphon off so that I can add the additional 6 ounces and end up with a 50/50 mixture of X & Y?

2. ### remlapSenior Member

216
0
Apr 5, 2005
northern CT.
Why would you mix powder together do you have a death wish?

3. ### IndyGunFreak

26,321
1,560
Jan 26, 2001
Indiana
please, tell me this is a joke.

IGF

4. ### cziv

402
0
Mar 14, 2009
OH
Too tough for you too huh?

5. ### shotgunredlocal trouble maker

8,885
1,092
Mar 1, 2008
Washington (the state)
Not even a funny one.

6. ### cziv

402
0
Mar 14, 2009
OH
No this isn't a joke. It's a serious math problem. If you can't solve it please keep your ridicule to yourself and get in line with me, cuz I can't either.

7. ### IndyGunFreak

26,321
1,560
Jan 26, 2001
Indiana
Trust me, I can do the math, I WON'T do the math for you... You're going to get yourself hurt, and I won't be a party to that.

IGF

8. ### Climbhard

334
59
Jun 10, 2010
Denver
You can't. Buy four more oz of Y

9. ### CitizenOfDreams

Feb 23, 2009
Orlando, FL
It probably would be easier for you to calculate had you still had all 10 fingers.

7,756
440
Sep 27, 2009
Austin, TX

11. ### Batesmotel

15,042
1,616
Apr 5, 2007
Utah
It is physically impossible to mix two powders and have the same mix each time you measure a charge. This is why every reloading manual states

DO NOT MIX POWDERS

Or do you think you are too smart for the basic safety rules of reloading?

Apr 8, 2009
CA

13. ### Batesmotel

15,042
1,616
Apr 5, 2007
Utah
Same here but I have seen some stupid things in my time.

Last edited: Sep 10, 2010
14. ### XDRoX

6,586
2,468
Jan 24, 2009
San Diego
Jeez guys, lighten up. Back in Jack's day when there were only 8 powders to choose from people would mix powders all the time.

BTW,
you'd need to siphon off 8.8 ounces (this would remove 6.4oz of X and 2.4oz of Y, leaving 9.6oz of X and 3.6oz of Y).

The 8.8 ounces you take out would then need 4 ounces of Y added to it to be an equal mix, if at some point you want to use what you siphon off.

Last edited: Sep 10, 2010
15. ### marklukich

216
0
Jan 17, 2010
Gonna have to remove approx 9 oz of the mix to be able to add 6 oz pure 2nd powder and come up with a 50/50 ratio... This would be the equivalent of adding 9.35 oz to 9.5 oz... not quite 50/50 but pretty close...

I'm assuming your are working on spices for a beef spare rib rub - correct?

If this is for gunpowder - you gotta ignore what I said and start all over again... my disclaimer...)

ETA - When I said approx 9 oz - the numbers I used were 8.75 oz removed so it pretty much matches the 8.8 stated above...

Last edited: Sep 10, 2010
16. ### EL_NinO619EX-Swage Monkey

Aug 11, 2010
San Diego
Please be a JOKE. Because the KABOOM will not be....

17. ### XDRoX

6,586
2,468
Jan 24, 2009
San Diego
Beat you to it Mark

18. ### marklukich

216
0
Jan 17, 2010
But did you use a calculator? I used the back of a bank statement envelope... lol..

19. ### mjb03bolt

78
0
May 1, 2010
First, I don't recommend doing what you are doing. With that being said here is an Example of a possible solution. The mix you have now - 16oz. X powder + 6 oz Y powder = 22 oz total. This is almost 3 to 1 ratio but easier to do in percentages. The mix now is 72.75% X and 27.25% Y. If you take 8 oz. out that leaves you with 14 oz mix which is 10.18 oz. of X powder and 3.81 oz of Y powder. If you add your new 6 oz. of Y to the 14 oz mixture you will end up with 9.81 oz of Y and 10.18 oz. of X. This is .37 oz or 1/3 of an oz. off of a 50/50 mix.
Again I dont recommend ever mixing powders and this is something I would not do.
Mark

20. ### shotgunredlocal trouble maker

8,885
1,092
Mar 1, 2008
Washington (the state)
I am beginning to see the light. You know when I switch from win 231 to WSF I have to adjust the powder measure. If I blended them together I could use a weight in between and never have to adjust my load again.
Wow I could pick up another nick name and everyone could just call me lefty.