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Fast Tracker

APP Question/Warning

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How long do you keep cartridges loaded with APP before firing them? I found about a dozen that were at least seven years old. They all fired, but every case split. 

 

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My wife shoots these.  All are shot within six months of loading.  I store them in a sealed container with a large desiccant pack.  APP  sells its powder with desiccant packs with cause.  Some cases loaded with APP split but no more so than the same cartridges loaded with smokeless powder.

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1 hour ago, Fast Tracker said:

How long do you keep cartridges loaded with APP before firing them? I found about a dozen that were at least seven years old. They all fired, but every case split. 

 

 

Pull a couple rounds and see what color the brass is inside. 

Know a shooter that picked up some 10+ year old 10X in 45 colt loaded with a BP sub. 8 out of 10 split when fired.  Pulled a couple bullets and the brass inside the cases had a red tint to it.  Suspect something in the powder attacked the brass and made it brittle.

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Considering APP is citric acid based I'm not surprised.

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