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04-08-2019, 04:05 PM | #16 | |
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Re: Rob Allen Carbon Fiber Barrels
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04-08-2019, 04:36 PM | #17 | |
Shootin dodo's
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Re: Rob Allen Carbon Fiber Barrels
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04-08-2019, 04:44 PM | #18 |
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Re: Rob Allen Carbon Fiber Barrels
Heavier bodied fish maybe, one of my colleagues who runs dive charter trips in Oz told me many overseas visitors had to upgrade their gear for the local fish, with rollerguns having to be swapped out for 3 band guns which he carried on the boat as spares. Guys tried to reband their rollerguns, but too much fiddling around at sea and settled for using the boat's spare weapons. I usually have 8 mm shafts in my guns as 7 mm is too light, and 9 mm for some jobs as striking power is what you need to drive tips in deep, provided the gun has the horsepower to deliver the shaft.
Last edited by popgun pete; 04-08-2019 at 08:18 PM. |
04-08-2019, 11:02 PM | #19 |
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Re: Rob Allen Carbon Fiber Barrels
Does it have to be a rob Allen barrel? Or do you just prefer them over others you have researched?
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04-08-2019, 11:07 PM | #20 |
Shootin dodo's
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Re: Rob Allen Carbon Fiber Barrels
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04-08-2019, 11:21 PM | #21 |
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Re: Rob Allen Carbon Fiber Barrels
I gotcha. Nautilus makes what seems to be a decent barrel for a reasonable price. I ordered a carbon barrel from one breath diving in aus that left a bit to be desired but worked fine for a 90cm gun. My next build I will be ordering the carbon cuttlefish barrel from benthic ocean sports. Seems to be the best carbon barrel I can find easily accessible.
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04-08-2019, 11:37 PM | #22 | |
Shootin dodo's
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Re: Rob Allen Carbon Fiber Barrels
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04-09-2019, 04:57 AM | #23 |
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Re: Rob Allen Carbon Fiber Barrels
Hi Jolinedaniel,
Has our distributor come back to you yet? Re spear diameter and rollers. We found the 7mm is best with a 14mm band and the 7,5mm best with a 16mm band.
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04-09-2019, 08:11 AM | #24 | |
Shootin dodo's
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Re: Rob Allen Carbon Fiber Barrels
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They actually just did this morning. In talks as we speak. Thank you! That makes sense about the shaft diameter Last edited by Jolinedaniel; 04-09-2019 at 09:37 AM. |
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04-09-2019, 02:13 PM | #25 |
Shootin dodo's
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Re: Rob Allen Carbon Fiber Barrels
For anyone wondering the carbon barrels are special order and for a 110cm are 329 for black carbon and 429 for the custom painted ones
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04-09-2019, 03:39 PM | #26 | |
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Re: Rob Allen Carbon Fiber Barrels
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https://www.divein2scuba.com/shipping-delivery.html Evidently spelling is not their strong point! Last edited by popgun pete; 04-09-2019 at 07:39 PM. |
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04-09-2019, 07:22 PM | #27 |
Shootin dodo's
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Re: Rob Allen Carbon Fiber Barrels
[quote=popgun pete;2184951]So the Aussie price was reasonable of 301 plus shipping for what was a painted barrel. Shipping would not be a lot on a bare barrel as it is a long skinny package and would most likely come in a tube as I have bought barrels that length.
Yea, I guess it wasn't too crazy. The guys at Freedive Shop had a Rob Allen 110 carbon wahoo that they are taking apart and selling me the barrel from. Should be a sick gun when I get it! |
04-09-2019, 07:33 PM | #28 | |
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Re: Rob Allen Carbon Fiber Barrels
[quote=Jolinedaniel;2184968]
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04-09-2019, 08:11 PM | #29 | |
Shootin dodo's
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Re: Rob Allen Carbon Fiber Barrels
[quote=popgun pete;2184970]
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04-10-2019, 03:31 AM | #30 |
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Re: Rob Allen Carbon Fiber Barrels
Hi Pete,
I have just weighed 2 x 1,4m plugged barrels. The ali with sticker is 672.4 grams and the carbon air brushed is 409.2 grams. The carbon is actually too light, so we add a small lead slug in the muzzle for standard guns. This changes the way the gun shoots massively. I can send you video of this if you are interested. Another factor to consider is in destruction testing. The ali with flex 2 x as far as the carbon before it destructs. The carbon will only flex ½ the amount before it destructs but needs 2 x the load for this to happen. These carbon barrels are made in house by pull-trusion method, not hand wrapped around a mandrel. This method causes the fibers to be in tension while curing with a very high fiber to epoxy ratio. We can pull up to 10 tons of tension.
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