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75cm or 90cm speargun for reef fishing?

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snask said:
What thick and length shaft did you use for these 2? I am planning similar use of 1 gun 90 or 100cm. Dual 14 or 16 rubber.
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Hiya!,

6.5mm for both shafts, one is a 140 the other one is a 118( I cut an old slightly bent 140)
 
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For dual 14mm bands 6.75mm should work ok too, that's what my Apnea ST60 came with. RA spec. 7.5mm spears for their 2x16mm Tuna model - they tend go a little thicker than most. I would guess that they spec. 7mm for 2x14mm ( as they do for their 1x20mm offering - by contrast, my Omer's came with 6.3mm spears for 1x18mm screw-on bands, superlight).
 
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