Dave,normally this kind of knifes are called utter knives ("cuchillo de remate",in my language).I don´t know if utter is the propper word.
They are used to put finishing touches to injured animals or when catching dogs make dangerous the use of a gun.If the blade have not the proper size ,the wound channel made by it will be small causing a slow dying breath.The normal size of this knives goes from 8 to 10 inches,with double edge.
If neccesary,you could use your BK7 to do this but have on mind that the blade design (simple edge)is not the best.Anyway,you have a good knife.I also have a BK2 Campanion made by Camillus some years ago.
Oli,you have a very well made piece.The original name of this knife is "Aitor Oso Negro" (Black Bear Aitor)made in Basque Country by a good knives manufacturer:Aitor.They produced knives and folding knives for the Spanish Army.Some years ago the factory was bought from a group called "Pielcu".
Your model was reglamentaryof COE,Special Operations Corp (like your green berets),Leggionaires,parachuters...
Good collector knife.
A link to more info and pictures:
http://fauerzaesp.org/foro/viewtopic.php?t=2754&sid=3c0128e8943001f4bf8518767cb5f7ce