This is the schtick to continue shooting when you're hurt.
Me an' bullits have a special relashun'. I put bullets in people, they leave me alone. That's mah contract!
You may use your Guns instead of Constitution to make DeathTests. As long as you make the test, you can keep going.
You can ignore penalties and Impairment due to your physical condition when firing guns. Injuries, entanglement, paralysis, drunkenness; all can be ignored. As long as you can still move at all, your inborn reflexes let you shoot with full effect. Your Dodge may still suffer, however.
You can also fire at full effect when in a less than ideal position - riding a bucking horse, off-road vehicle, hanging by your fingernails over an abyss, or otherwise inconvenienced. You still need your gun hand to be free.