Stringing the speargun

Stringing the speargun should be done on a regular basis, often the reason that shafts are lost is due the mono or swivel being in bad condition.













The three most common diameters of mono for Euro spearguns are 1.5mm, 1.8mm & 2mm. The trade off is quite simple, the thicker the mono the more infuence it will have on the spears direction but also more resistant to abrasion.
For this speargun we will be fitting 1.5mm as I want it to be as accurate as possible. Start by cutting the mono on a angle so that it feeds through the crimp a lot easier.
Place the spear in the mech while adjusting the size of the loop, this gives a better idea of how it will be when swaged.
Making sure we don't have the loop too short that it jams in the mech.












Or too long that it gets in the way of loading.Starting with a long tail, heat the end of the mono till it burrs over.
























Then tension it back up to the right length & swage it firmly.
When the gun is finished, we want the mono tucked out of the way so that it does not influence where the spear sits in the muzzle.
The final tensioning of the mono can be done at the swivel end (if there is one). I find starting of a bit long burring the mono then checking the tension. If it is still to long then snip off the burr, reburring, check it again. Then once we are happy swage the crimp.



Some divers like quite a bit of tension, but for myself I prefer just enough so it stays in place that I can pull it back over the line release with one finger. Some triggers will elevate the spear if the line release is too tight.