I have a similar situation with my work/weekly schedule and have to leave in the car all day often. But I have been concerned about the life expectancy or reliability of the ammo actually, with the heat. I usually keep all my military ammo cans with silica gel so it's killing me to think about the heating and cooling of the ammo in the car during the summer, Austin area. **PLEASE reply with any thoughts or opinions.
And yes the thickness of the Kydex makes a big difference in the heat resistance. I have had no trouble with .80 and thicker. I am about to make a permanent rig on the side of my seat and plan on using at least .90 thickness.
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