A 410 skeet load of 9s will do the job. Agreed on letting leaving snakes leave. I'd be quite surprised if there was only one snake. While unsocial when not hibernating, oft snakes clump together in good habitat.What is the best ammunition for home defense?
The best type of shotgun ammunition for home defense is buckshot. These are basically large lead balls inside shells that get loaded into the shotgun. Most people use buckshot for hunting big animals, but they are suitable for self defense purposes as well.What is a 410 gauge?
The .410 bore or .410 gauge, is the second-smallest caliber of shotgun shell commonly available. A .410 bore shotgun loaded with shot shells is well suited for small game hunting and pest control.