If you took fired primers, removed the anvil, used a flat bottom punch to remove the firing pin mark/indentation, cleaned them up some way (vibratory cleaner, wet cleaning solution, what ever worked) and then made your own priming compound, dripped it into the cup, reinserted the anvil and reused that primer - would the primer blow out because it was weakened by the working of the area struck by the firing pin then flattened out by the punch?
I remember seeing a video of villages in Afghanistan where kids were sitting around with punches/hammers and pounding that firing pin mark out of (berdan??) primers while old guys were sitting around putting them back in (resized) brass, loading them with powder and bullets with hand held reloading tools.
It didn't show anyone adding a priming compound back into the primer cup though. I figured they were reusing them since the kids took the time to flatten the bottom of the cups.