A funny thing happened to me last week. I have been carrying my 45 acp in the car. The car sits in an uncovered parking lot at work all day. I had the windows up and the temperature is getting up to 102-4Â°F. quite a bit hotter in the car. The gun was loaded with Federal Hydroshock HP's. I took the gun in the house and took the magazine out as I rotate mags weekly. I noticed that on 2 bullets the casing had expanded (presumably from the heat) and the bullets had partially fell into the casing. Anyone ever had this happen? The bullets are a few years old.