Should I compensate?

[golocx4]

I set up my reloading station in my unheated garage this past summer.
Last night got down into the 30's
I was separating some brass and getting ready to de-prime and clean.
I noticed how cold a batch was that I had sitting in a bucket and then wondered aloud.
Do I have to make any allowance for reloading in the cold?
I know the brass and the dyes should expand or contract in the same proportions right? It can't be much different than reloading on a hot day? Right?
Thinking out loud. I mean the only thing that possibly could be affected would be the crimp perhaps? Should I increase or decrease the crimp or leave it alone.
Moving it all back in the basement is really not a preferred option but an available one.
Getting a good heater is on my short list.

 

[schadenfreude]

Does ammunition assembled in the factory have the problems that you are concerned about?
.
It is also subject to the same wide temperature variances (although it is not loaded in unheated factories) during its service life.
.
The dimensional fluctuations that you are concerned about are simply not enough to matter and at temperatures where such concerns might arise, the dimensional consistency of your ammo would be the last thought on your mind.
.
It's fine. Load up.

 

[trainor]

you should not WORK UP any max pressure loads in cold weather, (especially not with a cold, unfired gun) and then expect that same load to be safe in rapidfired, hot gun, in hot weather. But with standard practice ammo stuff, you will be fine. As the gun and ammo get hotter, the pressure increases in the firing chamber/case, so if your load was maxed out for what's safe at cold temps, the heat of summer/rapidfiring COULD push things over the limit, resulting in a burst case. Especially in something with a poorly supported chamber/feed ramp area, like the old style 1911 .45, or the .45 Glock.