How does the republican sniper react to getting shot?

The sniper was calm, cool, and collect after being shot. He checked the wound, grit his teeth, and he cleaned and covered the wound.

With his left hand he felt the injured right forearm. The blood was oozing through the
sleeve of his coat. There was no pain--just a deadened sensation, as if the arm had been cut off. Quickly he drew his knife from his pocket, opened it on the breastwork of the parapet, and ripped open the sleeve. There was a small hole where the bullet had entered. On the other side there was no hole. The bullet had lodged in the bone. It must have fractured it. He bent the arm below the wound. the arm bent back easily. He ground his teeth to overcome the pain.

Then taking out his field dressing, he ripped open the packet with his knife. He broke the neck of the iodine bottle and let the bitter fluid drip into the wound. A paroxysm of pain swept through him. He placed the cotton wadding over the wound and wrapped the dressing over it. He tied the ends with his teeth.