Ammo in a cold / warm environment

[Kenk]

Looking for thoughts on this. I have a secure locking, yet easily accessible system in my vehicle to store a weapon year around. The issue is with the cold winter temps in MN, as well as the overall fluctuation in temperatures. For the past many years, I will change out my my vehicle  / carry ammo every 2 - 3 months in the winter, as my carry weapon goes from cold to warm on a regular basis; is this to frequent? These are factory HST or Gold Dot loads
Thanks

Ken

[The_Shadow]

Other than the gun freezing the oils or developing rust it should be OK.  The ammo you are using has been tested to extreme temps, have sealant on the bullet to case and primer more than likely.
Have seen clear primer sealants on some.  Therefore the ammo should be good to go!

[therognp]

My wife and I remain at odds about some things, one of which is the pocket search prior to washing machine dunking. Its not uncommon to have a round or 2 of some loaded ammo to get thoroughly cleaned. In several decades of this phenominum I have yet to have a round fail to fire. Handgun or long gun ammo. Shotshells are exempted because even I can find them in a pocket.  All of this ammo has been of the hand loaded form, with no sealing outside of. the interference fit of the bullet and the primer. The record is pretty solid here.

Second paragraph, I have found new brass without flash holes and other defects. So no matter what safety system you have in place there always is the possibility of failure. The two potential areas for failure would be that of failed sealing despite factory' implementation. The greatest potential would be, in my estimation, the introduction of a cold loaded weapon into a warm somewhat humid environment follow shortly thereafter , before evaporation dried the weapon, introduction back into the -*. cases. Worst case scenario would be some moisture coating the powder . This can result in a squib or dud. Primers can be affected but it takes more than a little to deactivate them.

I think your rotation of ammo is still the best policy providing of course we still have access to it in the future. The alternative is if your experience has been continually positive, then just stay the course and rotate out when it seems expedient.

[Rooster41]

When I worked in Law Enforcement we would shoot our duty rounds (either HST or Winchester Ranger) once a year for qualifying. Those rounds saw frequent temp changes by going from warm to cold or cool to hot environments. I never had one round fail.

[Kenk]

Thanks guy's!