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70% Isopropyl Alcohol Query

Generally, most drugs lose 10% of their potency each year.

70% = 63% after a year
then 56.7% after the second year
down to 51.1% after the third etc.

90% Isopropyl Alcohol is great for lots of reasons (add a little lanolin and it's great for lubricating shell cases for reloading!)
It’s what I use for reloading also
 
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