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Extra band for 100cm railgun

Thread Status: Hello , There was no answer in this thread for more than 60 days.
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FrostyToes

FrostyToes

Member
Sep 28, 2021
41
4
13
Howzit guys,

Hopes this hasn't been asked too many times before, but my current gun with 6mm shaft single rubbers needs a bit more oomf. Wondering if I can just thread on another looped rubber (dyneema wishbone) to this muzzle?
imersion-concept-muzzle.jpg


Also, is it dangerous to mix stainless hinged wishbones with dyneema ones on the same spear?

Many thanks from a newbie!
 
MAKO Spearguns

MAKO Spearguns

MAKO1
Mar 22, 2009
711
211
148
IT should work, assuming the trigger mechanism can handle the load.
 
FrostyToes

FrostyToes

Member
Sep 28, 2021
41
4
13
IT should work, assuming the trigger mechanism can handle the load.
Shot man! Had a good look at your mechs, definitely order one when I get to building my own roller... Happy weekend!
 
marco15499

marco15499

Laguneros Spearfishing
Apr 4, 2011
343
139
83
A 6 mm shaft won't get any benefit with two bands. Just get shorter bands.
 
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FrostyToes

FrostyToes

Member
Sep 28, 2021
41
4
13
A 6 mm shaft won't get any benefit with two bands. Just get shorter bands.
As luck would have it, that shaft got stuck in some rocks last week and I haven't been able to remove it... Might have to upgrade to a thicker spear after all!
 
hteas

hteas

Well-Known Member
Mar 9, 2005
988
143
148
74
Unless you only shoot very small fish, the 6.5 shaft will penetrate better and last longer.

Shafts designed for steel wishbones usually have sharp edges. Sharp notches and soft wishbones don't mix well.
 
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FrostyToes

FrostyToes

Member
Sep 28, 2021
41
4
13
Whilst I'm not the greatest size queen (yet), I do try keep the cod eating staple over the 3kg mark. Seem to be relaxing more and more each session too, all of a sudden I have some more time to play with underwater! Visibility is clearing up nicely now winter is approaching, think 7mm is an even better bet?
 

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hteas

hteas

Well-Known Member
Mar 9, 2005
988
143
148
74
1 6.5 with a 16mm band should be quite enough. Going to 7mm would be fine also, but I'd stick with the 6.5mm.
How long is your band? Proper stretch is 3.5. On a 100cm (front tube length) the bands should be 29*30cm.
 
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