Remember these guns originate from mainly meeting Mediterranean diver's needs. Euroguns were not so popular here in the old days because they were too weak, but often they were all that was available in your locality. Basically you need a reel to retrieve all your line and having a lot of line is really only useful if your victim is holed up on the bottom and the line allows you to see the gun, either on the surface or hanging just below. Water depth is the decider. Bigger and much faster fish you don't use a reel unless you have a gunsaver system. As you crank the line back in the water adds line drag, so the line doesn't go on loose. You never, as some landlubbers think, drag your catch in kicking and screaming on the end of your spear using the reel.
Don't forget advertising copywriters often write up gun adverts, don't put too much trust in what they say.
Don't forget advertising copywriters often write up gun adverts, don't put too much trust in what they say.