Reloading on a rainy day, moisture a factor?

[Super Spy]

Like the title says, if you decide it's a nice rainy day, perfect for garage activities, let's do some reloading. Then I think about the high relative humidity and the cautions I've read again and again about keeping powder and primers dry. Today's moist air is getting trapped in that case, could that be a problem?

I've already finished my brass prep, so no can't just do that. The brass is all ready to be stuffed.

What say Ye O Reloading Wizards O Calguns?

[Sub95]

you have states that run 70-90% humidity, and the guys i know still reload. i will even reload even if its raining outside. but i only keep out what I am going to use (powder/primers) single stage press, so not too many at a time.

[Cheep]

"I've already finished my brass prep, so no can't just do that. The brass is all ready to be stuffed."

Sounds like you don't have enough brass...

[1lostinspace]

nope

[Divernhunter]

Done it many times with no trouble. I have loaded when raining and the stuff is good many years later. Mind you I do not load IN the rain but inside when raining is ok. There are parts of the country which are high moisture all the time and people reload and shoot without problems.

Go ahead and load and enjoy yourself. Then when no threat of rain you can go shooting instead of having to load.

[Super Spy]

I went out and picked up supplies, only to get home and discover they gave me Magnum LKarge Rifle Primers when I asked for regular large rifle primers.....anyone know how much to download to compensate for the extra spark? I have 100 or so old regular rifle primers so I'll probably use those, I hear that when seriously downloading rifle loads as in for Cowboy action shooting Wild Bunch Military style you may use Magnum primers to ensure reliable ignition. Thoughts?

[SixPointEight]

I thought the title wasthe poll question. i misvoted. youre a-ok

[diginit]

Gunpowder has a small moisture content within itself. Your worse off if you let it dry out. A slower burn rate is better than speeding it up.

[Divernhunter]

I use mag primers in all my loads. I have never needed to download at all even with my max loads. If you are concerned and loading max loads then drop back alittle.

My 2 Cents

[diginit]

I've found that when using mag primers in 45 ACP loads. I had to drop back .02 Gr. to achieve the same FPS as a standard primered load. Winchester LP primers are good for either. Federal makes standard and Magnum primers. Which in another reason to work up a load if any changes are made. But where did Mag primers enter into the OP's question? I thought this was about water vapor contaminating the powder/primer... To the OP. Close the garage door... No worries...

[jwest]

As long as it's dry in your garage and your roof isn't leaking - you should be OK. I've done it many times without any problems.

[XDRoX]

Not unless you live in a pineapple under the see...

[fal_762x51]

When I reload in the winter, it is about 90% humidity. I have some hunting rounds that I have reloaded two years ago and they still fire.

[CalTeacher]

IF you're using a scale to measure, you might find that you're otherwise spot on charges are throwing a bit heavy due to the powder absorbing a little ambient moisture. Usually isn't much of an issue.