sbranden,,,, +1 on this advice..
Quote:For one thing, in general I don't think you should ever shoot a load in the summer that was a max load in the winter. Hodgdon extruded powders may be the exception to this, but you'd be much safer working up the load again when it gets hot. Even the Hodgdon powders show some temp sensitivity.
I learned from experience when I first got into shooting Prairie Dogs and started reloading for my .204s...I loaded some in February and March, trying to get ready for a trip West in June..
Just the difference in temperature cause some tight bolt situations and I don't load "max. loads".... I'm not sure if the difference in elevations may have been a factor as well.,,.. But sitting in sun for hours shooting can allow your ammo to change properties to a degree.
Now, I prep my brass during the Winter months and don't charge the cases until right before I'm ready to leave (it really doesn't take that much time)...We also store our ammo in cheap styrofoam coolers to cut down the probability of rapid temperature changes..
