What supplies are use for a gunshot wound from home?

With almost no exceptions (grazing flesh wound, perhaps) gunshot wound is a medical emergency, and should be treated at a hospital. That does not just apply to gut, thorax or head wounds - even a .22 bullet lodged in the arm greatly increases the potential for blood poisoning or permanent nerve damage, let alone extraction of the slug. People who think gunshot wound can be adequately treated at home have seen too many cowboy movies.