It's all about that Pow Pow...

[Jedabug92]

Jedabug, when I say I mix my powder it isn't just one pound here and one pound there. It may be 3 pounds from one lot and 4 from another. I like to keep 10 pounds on hand, but with how much I shoot that does not last long. 20-40 pounds would be preferable. Lot changes are sometimes more noticeable than others. Often when I mix lots it is to lessen the impact of a very noticeable change of another. Always test each lot before mixing there are some cases where there is no major difference other than the numbers on the jug.
I like to buy cases of powder to avoid this situation. Mixed lots also will not see my match rifle.

....cases of powder???

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[Jedabug92]

read this post #21 I think where he is talking with Hodgdon

http://www.longrangehunting.com/forums/f28/powder-lot-number-20257/index3.html

Many people mix it though and have no trouble doing so.. It boils down to try it and see.
You can even read about duplex loads on the net.

So many things are hear say and until you try it for yourself you will never know how something will work out for you.

I was told many times that certain things will not work. But when I did it for myself it worked fine.

Thinning paint with gasoline and painting a car. That will work and at many temperatures.
I was told put silicone on rubber valve cover gaskets on both sides to seal them well. Yea that was a big mess and a bunch of oil leaking.
Do not use it on cork either.. just dry and all is well.. But others have different methods.

Someone keeps telling me to go LS,, well a few someone's but I still like my minimal wires.
I suppose when I do go LS I probably will not go back to old school.

That's an interesting read, now, who wants to spot me a 8# jug of varget haha

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[swampratt]

ok so I loaded 3 groups 5rounds each 1x fired Lapua brass from same box. With 210m from same box and 168A-Max from same box.

5 from lot A and 5 from another lot and 5 more from yet another lot of Varget.
Now we will see what gives.. all charges weighed on a 505 beam scale 42.5gr. scale pan removed and sat back on scale to verify correct charges.
Single stage cast iron "O" press with the seating die NOT removed between loadings. can't get much more even and fair comparo than that.

Need to go shoot

 

[Jedabug92]

ok so I loaded 3 groups 5rounds each 1x fired Lapua brass from same box. With 210m from same box and 168A-Max from same box.

5 from lot A and 5 from another lot and 5 more from yet another lot of Varget.
Now we will see what gives.. all charges weighed on a 505 beam scale 42.5gr. scale pan removed and sat back on scale to verify correct charges.
Single stage cast iron "O" press with the seating die NOT removed between loadings. can't get much more even and fair comparo than that.

Need to go shoot

Well played sir, well played......let's shoot then hahaha

Sent from the Armory

 

[Blitzfike]

In most cases you will not see a significant difference, but take into consideration that lots of powder made in the '60s may differ significantly from that made today, and that is why some of the loading data is different for a specific powder today. I would not consider mixing Hercules Red dot powder from 1968 with Alliant Red dot powder manufactured today. The manfuacture of some of those powders have been transferred to companies that didn't even exist back then. Another case in point is comparing Alliant Promo with Alliant Red dot. The charge WEIGHT is the same for a given load between them, but if you set up a powder measure using one and then substitute the other, the powder density rears its ugly head and gives you a different WEIGHT for the same volume. I don't expect to see that in different lots of powder manufactured within a couple of years of each other, but you can never tell. That's an easy comparison for safety before mixing. Just my two cents..