Outside it was. Only the first shot was inside (the shot heard round Porter Ranch).
The rest of the story was that my friend ran/jumped/danced his a$$ home and got his BB gun and came back out after me. By then I had positioned myself behind a big rock in my front yard on the high ground (I lived up hill from his house). He had to try to get me from behind a planter down the street.
After that initial battle we got the other boys involved and had our BB gun shootouts better organized. Nobody ever got hurt and we never got caught by our parrents (mine would have killed me).