Preserving BP Substitutes
- Thread starter Walkabout
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I have some pyrodex that is more than ten years old. It seems to still be good. I have simply kept the lids on tight and stored in an unheated garage.
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My brother had a paper can of Pyrodex for over 30 years and it was still good 
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Cool, dry environment. No extreme temperatures or humidity. Original black powder is still fully potent after 300 years. Some of the substitutes that are made with sugar (sucrose based) deteriorate after opening.
ADK Bigfoot
ADK Bigfoot
I had a revolver with Pyrodex loaded for over 3 years. Five went bang one squib.
The real question is citrus based subs. T-7 I would not trust over 3 or 4 years.
Also you should re-cap if in very humid areas. Many old gunslingers re-capped
(re-coned) every morning. If kept loaded I would re-cap every six months in
normal humidity. Caps vary. Test your caps for stability and load accordingly.
The real question is citrus based subs. T-7 I would not trust over 3 or 4 years.
Also you should re-cap if in very humid areas. Many old gunslingers re-capped
(re-coned) every morning. If kept loaded I would re-cap every six months in
normal humidity. Caps vary. Test your caps for stability and load accordingly.
