I got hit about a year ago. I posted about it on another forum. If I remember right, it took 4-6 weeks for the bruising and knots to go away. Sorry, no pics either. Here is the post:
I got hit on the inside of my thigh by part of a 180gr 40 cal factory round. I was RO'ing and timing my brother and one of the last targets on his first stage sent the bullet back to me. I saw it heading towards me. I felt it hit my shorts and leg, but thought it was no big deal until the blood started running down my shorts. I pulled up the leg of the shorts and the blood quickly dribbled all over the ground. By time someone got me a towel, there was a small patch of ground, maybe 12-18" around with a nice pattern of blood on it that looked almost like it had been sprayed from a spray bottle.
I got back to the staging area and a LEO buddy took care of the wound for me. Some of the other people there had first aid supplies. The bullet didn't cut my shorts, but it left a cut in my leg about a 1/4" long and less than a 1/16" deep. I was surprised that it bled so much. The injury didn't hurt, but I know it got hit pretty hard. I couldn't feel or find any fragments in my skin. My buddy cleaned the wound and applied gauze and a bandaid and then wrapped an ace bandage around that to keep it from getting caught up in the fabric of my shorts. I was just happy that the hit wasn't any higher and that my "pistol" was safely holstered and out of the way.
Of course this happened when our first shooter was up for the first stage of 6. I let my brother run our mom and dad through the stage and then he ran me. I started holstered and loaded while saluting a US flag on a pole about 5' long. On the buzzer I grabbed the flag, rolled the fabric up a bit and tucked the pole between my mag pouches and my belt and used my arm to keep it there. I could not let the flag touch the ground of course and I had to transport it to the end of the COF while shooting all 20 or so targets. At the end of the range I holstered, set the flag pole in a cone to hold it upright and then unholstered and cleared my gun. I did well on the stage, but it took me longer than I wanted because I walked quickly instead of running due to my wrapped leg. I finished all 6 stages and came in 16th out of 58 people.
The two days after the competition, I only had a small cut on my thigh. On the third day it developed two nasty bruises and I had two areas that were knotted up. I am guessing the skin broke because of the force of the impact and that the knots were also from the impact. Today, 5 days later, the bruised area is about 4" by 6" and is less dark, but has turned different colors. The knots are much smaller than they were. The stretching that I do may have caused the injury to act differently than it would have otherwise. I did skip stretching when the bruising showed up. I also work in construction and have a very physical job that may have not helped either. I got a deep tissue massage this afternoon and didn't feel any pain where the injury is (my MT may have gone a bit easier on that area since I warned her about it.)
It looks like I should be fine. Which is good, since I have a shotgun competition tomorrow and an Evil Black Rifle competition on Sunday. I will wait until next weekend to get back out around the centerfire lead slinging guns, and I am going to tell my brother not to buy that ammo again. That particular Jacketed ammo was the worst I have ever seen for fragmenting into large chunks and the jackets were peeled back to look like a metal star that felt razor sharp. I load MG 124 JHP bullets for my Limited gun and don't have that much shrapnel.
Yes stuff will come back at you. It happens a lot when you shoot competitions with all steel targets but people don't usually get more than a small cut/scratch that leaves a little blood spot. Most people don't get nasty bruises from impact injuries. That's what playing paint ball is for, or that's what I gather from seeing the marks on people who play it. It rains lead at our range, but the small pieces high in the air aren't the ones that worry me.