The DeeperBlue.net Gun Building Extravaganza - Gun Options 2 - Length and Bands

[Mr. X]

Originally Posted by Dobs

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I'll stress my point again. If you put a reverse trigger mechanism you will have the shooting length of a 100 (or even more) in a 90cm body. This will be the perfect all-around gun.

Interesting idea. Never heard of this before -- is there an example product or project on the web that we could take a look at. Is the idea to use a mid-handle mech but in a back handle format? I think Wong might offer an option like that, the "rear-plus": Daryl Wong's Legendary Spearguns - Custom Built in Hawaii

What's the point of an enclosed track? I can't see the need for it but I can foresee potential problems (insufficiently straight spear, blocked barrel, special finned spear needed, wear/corrosion/friction, jammed spear, spear-line routing, building complexity/cost,...). I'm sure there are answers & ways to eleviate the problems -- but what is the gain to justify it?

BTW how about including one of those barrel magnets Foxfish reported on (used by Riffe?).

[Coral Sniper]

110 single band thin barrel, set up for a light shaft(6mm),

That would be a sweet gun!

[Pastor]

Originally Posted by Mr. X

Interesting idea. Never heard of this before -- is there an example product or project on the web that we could take a look at.

Pathos and Imersion guns have this. It is just a different arrangement inside the trigger mechanism so that the sear is behind the actual trigger instead of in front of it. 7cm is more accurate than 10cm.

Originally Posted by Mr. X

What's the point of an enclosed track? I can't see the need for it but I can foresee potential problems (insufficiently straight spear, blocked barrel, special finned spear needed, wear/corrosion/friction, jammed spear, spear-line routing, building complexity/cost,...). I'm sure there are answers & ways to eleviate the problems -- but what is the gain to justify it?

Enclosed tracks are awesome, give it a few years and there will be a few euros with them instead of just the likes of Trygons. If you shaft is straight enough to be used normally then there will be no problems, friction is eliminated by water cushioning. The huge advantage is that because most of the shaft whip is eliminated you can use much thinner shafts or crank up the power without worrying about loss of accuracy.

Originally Posted by Mr. X

BTW how about including one of those barrel magnets Foxfish reported on (used by Riffe?).

Good idea

[Dobs]

Originally Posted by Pastor

Pathos and Imersion guns have this. It is just a different arrangement inside the trigger mechanism so that the sear is behind the actual trigger instead of in front of it. 7cm is more accurate than 10cm.

Actually it depends on the trigger and handle design. I have a reverse trigger mech on one of my guns and the difference compared to the regular one is 10 cm. The total length of the gun is 140cm and the loading length is 122 cm. On another gun I have, with a regular mechanism, the total length is 136 cm and the loading length is 106 with the same spear.
Here is a general idea thanks to Persiko (arbalegno.com):

[Pastor]

OK OK, it depends on the length of the sear, so approximately twice the length of it. Don't tell me, yours is bigger than mine Story of my life

[Mr. X]

Originally Posted by Pastor

Pathos and Imersion guns have this. It is just a different arrangement inside the trigger mechanism so that the sear is behind the actual trigger instead of in front of it. 7cm is more accurate than 10cm.

Sounds useful. So, that would move the loading notches back 7cm, providing extra stretch & power but also requiring a pull closer into the chest to load - assuming the spear is notched as normal. Anybody using an Imersion gun care to comment on what it is like to load? [Apnea Online Store have long sold the Imersion brand spear guns].

[Pastor]

I've got 4 guns with this arrangement, I don't notice any difference but I'm not short of strength so maybe that helps. The Pathos triggers can be had here (7cm )

[Lockedin]

Originally Posted by Pastor

So for those who are wanting a twin band gun are you thinking high mass barrels/bodies? Wide thin or more of a round shape?

Wider and flater re: good swing action, stable when firing. That said, I'm used to a short (76cm) two band, and a Riffe mid handle (139cm) with three bands.

The Riffe has a narrow body and the optional wings on it and they do a great job stablizing the front end of the gun when firing.

Teak and purple heart should make a beautiful laminate piece! Can't wait to see it!

[Newbie_spearo]

I voted 110cm with twin band. I liked the squid shape, not sure where I saw it but I do remember seeing it somewhere. Seems like it would add a little strength with out making the gun cumbersome and hard to track with?

[TOOmas]

it was a coin toss for me between the 90 and 100 twin bands. the 100 won but no matter the length i would like to see a wide, flat barrel as that would help with tracking.

[Mongrel454]

Im with Newbie also.. I like the squid shape. If i couldnt pick that id go with long and sleak looking.

[foxfish]

Originally Posted by Marwan

too many UK voters on these polls i say maybe equate my vote for 4 of those UK blokes

Yes you are right but the voting is still closer than I thought it would be!
I guess we all vote for what we would like to win but I did not vote for what would be the most suitable gun for my type of hunting - I have plenty of 90 single band guns!
Only a few more days left on this poll so regardless of what you voted for keep the suggestions comming
Whatever the final design the gun will be beautiful & special.

[Marwan]

youre right foxy, i didnt notice the 100 twin band was becoming popluar again with the votes, this is like horse races, gooo goooo twin band 100!!!!!

[blaiz]

I voted 110 but feel stupid for doing so. I own a 110 euro gun, love it, and will probobly never use a different 110. I think I too would like to win a 90.

[Jonny250]

This is a great idea, the best of the best designing and building an epic gun!
with my limited knowledge i have voted for the 90, but would choose as much power as possible, so at least 2 bands, high mass(which I guess is an advantage of a wooden gun).
Personally, I'd like to see a QR tripod mount built into / under the barrel just forward of mid-length...