TexasCHLforum.com

There are only two things I'd be concerned about when it comes to leaving a gun in the car in the Texas heat. First, the very practical aspect of handling a gun that could be up to 160F; it's not something you'd want to tuck IWB or into your Thunderwear.

Second, I'd be concerned with ammo deterioration over time. Ammo doesn't mind heat, but it's recommended that it be kept at stable temperatures. I wouldn't worry about reliability just because it had gotten hot a few times, but I believe I'd limit ammo to a month or so of heating/cooling cycles before using it at the range.

Kevin