I was cutting up my buck and was taking the individual pieces of muscle off the ham and I noticed this black piece under the thin lining deep inside the ham between muscles. I thought at first it was a blood vessel and I like to cut all the waste off but once I cut it out I noticed it was a part of a rubber ring. Now there was no sign of injury or any broadhead in the ham. Tissue had started to grow ahead the rubber piece also. I think it’s the rubber ring that holds some expandable’s together. What are some things you have found in deer?