I'm going to be driving to FL in a few weeks where I get to exercise my rights. I'm going to be taking some ammo with me in the trunk. A few boxes of FMJ and a box of GDHP for my 26. I'm going to be driving from 10 degree weather to about 80 in a span of about 36 hours. Should I be concerned about exposing the ammo to such temperature changes? Currently the ammo is in a cool climate controlled room. Is ok to keep the ammo in these extreme temperatures (below freeing in IL, scorching heat in the trunk in FL) Wanna kill these ads? We can help!