Donny, this would be #4 Buck Shot. It has the right amount of penetration and stopping power and provides less collateral damage to walls and family potential members. budsgunshop.com/product_info.php/products_id/411559297/rio+royal+buck+12+ga+2-3+4+4-buck+27+pellet+5rd+box

As mentioned, #4 Buck would be a good choice. If you're in a secluded area with no concerns about over penetration then you can throw a slug round in the middle for a surprise!!

Donny, depends on a couple things. First and most importantly is where you live. If you live in an apartment complex with people living beside you or family members in rooms beside you I'd go for the lighter #4 buckshot. It's heavy enough to stop the threat but less chance to over penetrate and hit someone not intended. Here's a link to #4 buckshot........ budsgunshop.com/product_info.php/products_id/65082/winchester+super-x+12+ga+2+-3+4+27+pellets+4+buckshot+5rd+box......... If you live in a more secluded area and over penetration isn't a concern is go with 00 buckshot. Here's a link to 00 buckshot if interested......... budsgunshop.com/product_info.php/products_id/411559293/rio+buckshot+low+recoil+12ga+2-3+4+00-buckshot+9+pellet+5rd+box....... Hope this helps.