Yeah, and you need to make sure that your states CCW is legit to even do that.
Missouri and illinois have not in the past. So, when a group of us drove to SC several years ago, we had to move magazines around in veghicles. My Glock mags and 9mm in his car, and his 1911 and 45acp in mine.
Tom, that's the frustrating thing about the current set of gun laws. The verbiage is usually confusing at best, and different everywhere.