That assumes your nickel worth actually accomplishes anything.
And for those tempted to mess with other chemical, be aware that there are unintended consequences to it.
Some of those like lock-tie are intended to not only seal but penetrate.
Penetrate and muck up the powder and you have shot yourself in the foot.
If you are worried about keeping bullet dry, put em in a zip lock, include a desiccant pack if really humid and up and down in and out of rain.
I have been shooing for 55 years and never saw a failure due to water, and I have been in some of the worst places you can be weather wise.