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Long Range Hunting & Shooting
What to do with leftover powder
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<blockquote data-quote="J E Custom" data-source="post: 1648525" data-attributes="member: 2736"><p>I will add the reason I don't mix powders at all Unless they are the same lot number and the used powder is not old. Mixing old powder with a sealed keg of powder even the same lot Number can be risky unless you take steps to reduce the load. Powder degrades over time and the first noticeable thing is the acid smell that is common with powder that has gone beyond it's usable life. The problem with this is that it has already gone bad before it reaches this state and should not be used.</p><p></p><p>Powder begins to degrade when you open it. I stopped buying 8 lb kegs because if I didn't use it up within a reasonable amount of time, velocities and SD changed. So I started buying 4 or 5 1 pound kegs/cans with the same lot # and only opened one at a time until it was empty and then opened the next one. The older re loaders remember the old paper and steel cans that the powder would/could </p><p>eat the can up when it started going bad. The new all plastic containers have greatly improved this problem, and if the seal is not broken last a lot longer.</p><p></p><p>Age and exposure to moister changes the burn rate and can effect the consistency load to load. I finally used up the last of the original H 4831 powder that Hodgdon sold by pulling 20 mm shells apart and packaging the powder to sell that started him in the business and it was the best/most consistent powder I ever used (I used it for 1000 yard matches only). </p><p></p><p>The other reason I don't recommend mixing powder is the chance of mixing the wrong powders together. If you never mix powder from one can to another this problem doesn't exist. One mistake is all it takes. Reloading can be very dangerous if you are not organized and have a good procedure to follow. I clean my bench of all things not needed for a specific load and only have one powder, one type of primer and the bullets called for in the load accessible .</p><p></p><p>I look at the cost of the small amount of powder that is discarded to be small compared the the cost of other possibilities. This is not the place to try and save pennies.</p><p></p><p>Just me</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1648525, member: 2736"] I will add the reason I don't mix powders at all Unless they are the same lot number and the used powder is not old. Mixing old powder with a sealed keg of powder even the same lot Number can be risky unless you take steps to reduce the load. Powder degrades over time and the first noticeable thing is the acid smell that is common with powder that has gone beyond it's usable life. The problem with this is that it has already gone bad before it reaches this state and should not be used. Powder begins to degrade when you open it. I stopped buying 8 lb kegs because if I didn't use it up within a reasonable amount of time, velocities and SD changed. So I started buying 4 or 5 1 pound kegs/cans with the same lot # and only opened one at a time until it was empty and then opened the next one. The older re loaders remember the old paper and steel cans that the powder would/could eat the can up when it started going bad. The new all plastic containers have greatly improved this problem, and if the seal is not broken last a lot longer. Age and exposure to moister changes the burn rate and can effect the consistency load to load. I finally used up the last of the original H 4831 powder that Hodgdon sold by pulling 20 mm shells apart and packaging the powder to sell that started him in the business and it was the best/most consistent powder I ever used (I used it for 1000 yard matches only). The other reason I don't recommend mixing powder is the chance of mixing the wrong powders together. If you never mix powder from one can to another this problem doesn't exist. One mistake is all it takes. Reloading can be very dangerous if you are not organized and have a good procedure to follow. I clean my bench of all things not needed for a specific load and only have one powder, one type of primer and the bullets called for in the load accessible . I look at the cost of the small amount of powder that is discarded to be small compared the the cost of other possibilities. This is not the place to try and save pennies. Just me J E CUSTOM [/QUOTE]
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