Does anyone know what kind of snake this is?

[1/4 stick]

Ok, I'm sitting in my room at the back of the house. Hear my nephew walk by to go on the back porch to smoke a cig. Hear him sit down, it's quiet for a second, then I hear cussin and all sorts of shufflin and bangin. I go to check. He's standing inside the back door, britches a little browner . He says there's a snake out there. Sure nuff this snake had come through a hole in the screen. My nephew said he's sat down and flicked his lighter and caught a glent of a eye staring at him. lmao I grabed my pellet gun shot at it once and caught the side of the snakes head and it slithered behind the table I pulled the table out and shot again trying my best to hold a flash light with one hand and aim cause I was shakin pretty good myself by this time. (barrell was only a inch from the buggars head but it was coiled and in strike position and I was shakin myself by this time.) poped another in it's head. Got it good, but loaded and poped it again to be sure before I went about removing it from the porch.

Anyway, I don't know if it was venomous or not nor did I or will I ever care as a snake invading my space is gonna be dead as long as I see it before it bites me. Anyone know what kind it is? I have no clue.