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Ok cool sounds good. I think I'll just get some weight and then add or take away. Just like you said trial and error. Thanks a ton you guys have been a ton of help! I can't wait to get out and spearfish!

Thanks Dan!
Here is a pic of the gun rigged less the band.

Very nice clean work. May it serve you well. Where's the band?

Finished up the roller gun today, less rigging, which I will work on tomorrow. Weather is crap and the ocean is chocolate milk so what better way to spend the day?
The gun came out perfect! Length is 103cm with 82cm back under the gun. I installed 3…

Trial and error is the way to find out as your body fat content affects your density and someone the same size as you may need different weights. In the shallows try different weights by adding them on until you float vertically with your eyeline on…

Awesome that's all great info and helps a ton. I got a great deal on my wetsuit normally it's $350+ but I got it for $50. So I couldn't pass it up. I think for now I'll keep the 16mm band and I'll probably buy a 18mm and use a 6.5 or 7mm shaft later down…

I had been waiting for the twist pattern tips to arrive, but they are a no-show and a pack of two blade arrowheads arrived instead, which I never ordered! I guess these are intended as replacements and on reflection may be more useful anyway. I will…

I note that JBL have an arrowhead in their range which I have not noticed before.

By the way I bought the NOS Undersee "Mako" quad for the starting bid price, so saved 20 bucks. Now I have three, but once I had a dozen or more of them and regret…

The spear tips that I am talking about have a wider head than the floppers which sit down in the "shadow" of the blades so to speak. I have shot heavy scaled groupers with these tips and punched right through them behind the gill plate as that area…

Pete, incidentally I was on a dive last week and shot a parrot fish, perfect just behind the gill plate, should have been in the bag. But.... the flopper did not engage and the fish got off. This puzzled me, until i pulled my shaft up. My spear (with…

As luck would have it here is a "new old stock" Undersee MAKO spear tip! But the seller wants 65 bucks for it!
https://www.ebay.com.au/itm/Vi…:rk:2:pf:1&frcectupt=true

(Quote from Bmcg1212)

Dont worry about the gap, your top should be snug enough to keep the material close to your skin. I agree with what Dan said, farmer johns are a pain when you gotta take an aqua deuce, but they do add an extra layer of insulation…

CRESSI Gomas PURE SCARLET 15 mm y NAVY 18'5 mm probando estas dos clases no solo aumenta la precision sino la potencia ,ademas de la reactividad de las gomas adrenalina pura, sus caracteristicas las podeis encontrar en el enlace …

After some weeks of not being used pneumatic speargun pistons often refuse to budge at first when you try to muzzle load your gun. With the piston failing to move the spear tail is now firmly stuck in the piston which can only be jerked out with some…

I don't like farmer john style pants because if I need to take a dump in the water everything has to come off including the jacket, and the suspenders don't add any warmth only more hassle to put on and take off. That said the belt should cinch it all…

Awesome thanks for the help that sounds great! And yes I will I'll post some pics! Hoping to find some fatties! I had another question. Im a shorter stature type guy with so muscle and I ordered a pathos thira wetsuit size small. I noticed when I put the…

A photo of a Nemrod "Clipper" piston with a modern plastic piston for comparison.

As people are often trying to resurrect Nemrod pneumatic guns by replacing or repairing the pistons this post describes how the pistons were made.

Here is a diagram of the Nemrod piston and how they were assembled out of several sub-components using…

So made significant progress on the roller gun today. Three major cuts: Handle base, mechanism and trigger channels. Next will be to drill and pin the mechanism mounts then cut the shaft channel. After that, cut in the line release window and drill/pin…

Looks nice