im mainly a bowhunter so this is new to me.i have aquired a mossberg 835 with a turkey choke and a 730 full choke.i know the turkey choke would blow the hell outta rabbit and squirrel but was wondering about the 730.what choke do i wanna use for these little guys?

Modified or Full choke will be fine, I prefer modified for rabbits and full for squirrels... just depends on your preference.

Go for the full since you have it.