I checked the zero when I got to CO and it was fine. I didn't check it when I got to KS, I figured if it made it 2000 miles from NC to CO and was fine, it should make the 600 mile trip to KS ok. All of the guns were in padded cases in the car and I am very careful not to bang them around when I put them in the car. I haven't been to the range yet since getting home. I spent the weekend trying to recover from the drive back home. I'll try to get out sometime this week and see if the zero's still good. I double checked the screws when I got to KS and they were all tight.

Thanks for the input so far.