I'm wondering how long powder can be stored and it still be good.
Specifically, my LGS has IMR 4320 powder in stock in two varieties: Dupont-produced tin cans and new plastic bottles. The older tin cans are $21 each while the plastic bottles are closer to $28 a bottle.
If you were buying 3-4 pounds to store for near-term use (in the next year or two), would you save the money and buy the older tin cans, or spend more to get newer powder?
Specifically, my LGS has IMR 4320 powder in stock in two varieties: Dupont-produced tin cans and new plastic bottles. The older tin cans are $21 each while the plastic bottles are closer to $28 a bottle.
If you were buying 3-4 pounds to store for near-term use (in the next year or two), would you save the money and buy the older tin cans, or spend more to get newer powder?