mix different lots of same powder

[DubDubU]

I use a RCBS uniflow powder measure set at 5.2 grains. Down to about 500 grains of WFS powder left in the current pound. Have a new pound of same powder with different lot number. Both purchased within the last 6 months.

How low can I run the amount of powder in the measure before the measure becomes inconsistent?

I'd like to put the remaining powder in with the new. How much would you be ok with mixing into the new pound?

 

[Miata Mike]

I would personally run the measure fairly low before dumping what is left with your fresh pound of powder. I am not sure at what point your measure might become inconsistent.

If in doubt, just double check your powder weights a bit more often on your powder scale.

 

[USSR]

I'd like to put the remaining powder in with the new. How much would you be ok with mixing into the new pound?

Mix away, Jose! No problem adding an ounce of the same commercial cannister-grade powder to the very same powder with a different lot #.

Don

 

[Walkalong]

I am probably a little more anal than need be here, but I like to check weights of both lots to see how close they are. If they are real close I mix them. If not, I don't.

 

[oneounceload]

No problem - how do you think the powder makers get their consistency? By mixing lots -

 

[DubDubU]

Thank you everyone for your answers. Kinda what I thought but wanted to double check.