Just a note to folks condoning the use of bb or pellet guns.
A co-workers cat came home last week, unable to put any weight on his front left leg. X-ray revealed he had been shot (turned out to be a pellet gun) right in the shoulder joint. Whether the shooter was aiming for the heart or not can't say, but he barely missed it. The should joint was completely shattered and the only options were amputate or euthanize. The cat is young so they choose amputation.
Measure twice, cut three times, start over. Repeat as necessary.