Many years ago now, I owned a Winchester M70 in .243. It was a tack driver, and I really enjoyed shooting it. I had developed an H4350 load for it that was a bit under listed max that always delivered sub MOA groups, and it was just easy. Then one day, I had a shot that vented through the receiver and when ejected had blown the primer. That spooked me, but after checking out the gun, I fired another that did the same thing. I was done for the day, and completely shaken by the experience.
I began to try to figure out what went wrong with my "standard" load. I took reloads apart. I reweighed charges. I measured bullets. Finally, I measured cases.
I had not paid much attention to the number of times cases had been reloaded. (error) I had not measured case length. (error) I had never done the paperclip test to check for incipient case head separation. (error)
When I did finally measure case length, I found a number of cases that were way too long. I cut a couple of them in half lengthwise and discovered the dip in case wall thickness indicative of case stretching and eventual case head separation.
Since then, I always keep track of number of reloads. I always measure case length and trim as necessary. I also don't full length resize all the time.
Bottom line: Yes, cases that are too long can an will eventually let you know, and it may very well scare the hell out of you.
Be safe.