Field gun sounds good, although maybe a little too general-purpose in sound. I guess I really should have explained what I need the terminology for.
Sometime next month, I am to begin filming a Youtube series on practical firearms self-defense, aimed primarily towards beginners and people unfamilliar with firearms.
Basic safety and terminology will be explained, how to get a proper sight picture with various kinds of iron sights, as well as what to look for in a weapon for home defense, carry on your person, carry in a car (with appropriate disclaimer text on the screen telling viewers to look up state and local laws in applicable topics, of course!, etc.
Due to my job, I have to fly to and from Taiwan often, and sometime in the next few months, one of these flights will take me through Anchorage Alaska, where I intend to stay for a while, and film an 'episode' about self-defense against wild animals (and hopefully able to get an interview on the subject with Wild West Guns. If anyone knows their stuff on this subject, they're it.)