I'm going to have to disagree with krochaus & smitty on this one...
If your primers fall out, your pressures are way past the tinsel strength of the brass web, which is probably in the 65,000 psi plus range.
The original post showed a 10mm pistol case. Now while I agree that the 10mm is a high pressure cartridge, I don't think it's designed for 60,000+ psi.
If you get case head/rim/web expansion of .001" in any cartridge, rifle or handgun, you are way over pressure. To get a primer to fall out, it would take at least .004" and the shooter would probably notice significant gas leakage.
Depending on the handgun, a 60,000+ psi load could have catastrophic results.
Personally, when I am working close to that kind of potential pressure, I use a micrometer to measure the head or web for expansion. If I get any, I back off six percent, and call that maximum for that gun/load combination.
YMMV...