Mixing Different Lots Same Powder

hnts4fun

Well-Known Member
Joined
Jul 2, 2007
Messages
327
Location
Jackson, Wyoming
Let me have it with both barrels I'm ready for it. I have three 1 pound containers of RE33; each with a different lot number. I purchased these new from a reputable company and they have not been opened. With an eye towards NOT having to work back up to a safe load each time I have to open a new container; would I be able to SAFELY combine the contents of these 3 containers in order to form a homogenous batch of powder? I do know there is the very real issue of static electricity buildup that would need to be addressed, but I wanted to know if my "mixing" idea was a bad one before I asked any other questions.
 

venatic

Well-Known Member
Joined
May 7, 2011
Messages
346
If you are very concerned I would load 4-5 rounds from each lot and round robin and if they look the same mix away
 

Howland

Well-Known Member
Joined
Nov 19, 2017
Messages
59
Location
Upstate SC
I have about 1/4 pound left between two 1lb containers of different lots. I will mix both into a new 8lb tub of a third lot of the same powder before my next session. I'll run a few test groups, tweak my recipe if I have to, then it'll be almost 700 rounds before I have to do that again. Coincidentally, I have almost 700 bullets sitting on the shelf.
 

ShtrRdy

Well-Known Member
Joined
Jan 14, 2012
Messages
2,735
Location
High Plains
Personally, I wouldn't do it. I don't see how you can perfectly mix equal portions such that when you dispense a charge of powder it has equal portions from all three lots.
 

MagnumManiac

Well-Known Member
Joined
Feb 25, 2008
Messages
2,134
Yes, it will pose no problem if you mix ALL the powder together in a vessel large enough to do so in without spilling any.
Mix it thoroughly with a large enough spoon for at least 15 minutes, then divide into 1lb lots.

As long as you work up loads with the mixed powder, there should be no problem.
I wouldn't mix it AFTER I had worked up a load with one batch and then tried the same previous load without dropping back and working up to that previous load.........bad idea.

Cheers.

P. S.
I ALWAYS mix my lots together.
If I can't find a 8lb keg, I'll buy 1lb bottles from different sources to make an 8lber and mix it all together.
I have NEVER had an issue doing this, and I work my loads back up and adjust if necessary.
 

Wedgy

Well-Known Member
Joined
Feb 9, 2013
Messages
1,964
As stated, yes it is safe to mix them to iron out any lot to lot differences. Each is safe individually so why would they be unsafe combined ? They do it with paint and it's call "boxing" the paint to make it all the same color. Different substance, same principle.
 

J E Custom

Well-Known Member
Joined
Jul 29, 2004
Messages
10,317
Location
Texas
I would not think It would be unsafe to mix as long as you are not loading MAX Loads. I personally would not do it for several reasons.=

First if you mix them you will not be able to do a perfectly balanced mix as ShtrRady said and load SDs would suffer from shot to shot.

The next reason is that larger quantities last longer and degrade more with time.

I would not mix at all, and run completely out of one batch while reloading and then separate the two batches of loaded ammo if more ammo is needed and when the second batch is grouped, do any adjusting that Is necessary.

Mixing powder is just like mixing primers, Not a good idea in my mind if accuracy and safety is your main goal.

When looking at the big picture, What is the cost of a few primers or ounces of powder when we spend hundreds or thousands of dollars on a rifle, support equipment, travel, guided hunts, ETC only to have a bad load cause a miss or over pressure ending the hunt.

I save these partial batches for break in and testing function with mild loading's. Nothing goes to waist !

J E CUSTOM
 

Wedgy

Well-Known Member
Joined
Feb 9, 2013
Messages
1,964
JE, "larger quantities" ? It's 3lbs... if it degrades so fast why do they make 8lb containers ? Also it is R33 so we are likely in the 60-100 grain magnum size loads so it isn't going to be sitting around long. If you can't blend 3 lbs of powder together into a fairly homogeneous mix you probably shouldn't be reloading. It's like mixing ingredients together and baking a cake.
 

hnts4fun

Well-Known Member
Joined
Jul 2, 2007
Messages
327
Location
Jackson, Wyoming
Thank you! I appreciate that reloaders on both sides of this issue have taken the time to reply. There were 2 reasons why I posted a request for help. First to see if mixing was safe. Secondly, I'm running a custom 28 Nosler. I came up with an accurate safe load and also did some troubleshooting along the way with the first pound of RE33. Load development is of course a critical component of what we do. However, when loading for a 28 Nosler I have to factor in barrel life. If there was a way to safely utilize my remaining 3 pounds of powder without having to "workup" each time I opened a new bottle then I wanted to know about it.

Now I'd like some input as to how to mix the powder while minimizing the risk of static electricity causing a problem. How about if I use a large glass container and a wooden spoon? Would this work safely?
 

coyotezapper

Well-Known Member
Joined
Sep 26, 2009
Messages
907
Location
Central Utah
Let me have it with both barrels I'm ready for it. I have three 1 pound containers of RE33; each with a different lot number. I purchased these new from a reputable company and they have not been opened. With an eye towards NOT having to work back up to a safe load each time I have to open a new container; would I be able to SAFELY combine the contents of these 3 containers in order to form a homogenous batch of powder? I do know there is the very real issue of static electricity buildup that would need to be addressed, but I wanted to know if my "mixing" idea was a bad one before I asked any other questions.
Yes, yes, yes. I have done this many times. Just make sure you mix them well.
 

Greyfox

Well-Known Member
Joined
Jan 21, 2008
Messages
5,527
Location
Northeast
I have always been inclined not to mix different lots of powder.used for precision work. While you may be able to achieve an average velocity from the blend that is the same or close, ES may be increased.
 
  • Like
Reactions: stx

nvschütze

Well-Known Member
Joined
Aug 5, 2019
Messages
391
Location
Nevada
I've mixed differing lots of the same powder. Gunpowder is all pretty much the same beyond its physical size (spherical or extruded); it just has various coatings on the kernels that regulate the speed of combustion. A can of powder from 1963 is not going to be as precise in its formulation as a can of the same designation from 2013 because of the increases in technology over those fifty years. As long as you're mixing a known powder with a sample of that same designation, you should encounter no problems. Just make sure the entire volume is very well-mixed.

I'm fooling right now with a mixture of H4831 and H4831SC. The difference in these two powders is that the SC version has the extrusions cut shorter than the original, so as to reduce interstitial losses. The SC type has a sort of green color to it, the original version is the common black/slate shade we see in most gunpowders. Haven't shot any of it; we'll see how it goes when I can finally get out there and start sending bullets downrange. I'm expecting nothing of appreciable note.
 

Trending threads

Nightforce has great tracking capabilities, they are rugged, a bunch of elevation, holds zero forever, and reticles are designed for long range shooting. So if you are looking to shoot long distances constantly, then you need a scope that can take the abuse. -- gilmillan1


Culture Of Excellence At Nightforce Optics
By Len Backus

A high level of quality both in production and in service. Read More


Nightforce is such a solid combo of reticle, available elevation, glass that is good enough to shoot at the longest range you can dial. Nightforce has bullet proof construction that can handle the incidental horse rolling or some other rodeo action. -- bigngreen


Nightforce ATACR Scope Review
By Jeff Brozovich

The new NightForce ATACR is for sure a top choice for any long range shooter. Read More


The total package. Nightforce is the best I have used as far as turret feel and solid detents. I have never had one that didn't track right on and always return to zero. Nightforce NXS is the best value for everything I need. -- Broz


Nightforce Velocity 1000 Reticle Review
By Scott Shreve

I think Nightforce knocked it outta the park with this reticle! Read More

NightForce


Top