Omer cayman et review?

[AURYN]

Well it does not sound good, the et should be pretty light in the water even with the orginal spear fitted. Is there any weights left in the muzzle? If it is leaking I would get it back to your supplier while it's still under warranty.

i ask them, they said all of ET is like that,. maybe the et design for use in freedive, if use in shallow water it will not leaks, but i used it in scuba spearfishing (deep dive).
they also tell me to put sealant between muzzle and the barrel, now my et is under repairing. hope its work.

 

[spaghetti]

In all fairness, I am absolutely sure that the gun can't be purposedly designed to leak.

 

[Ron Bakker]

When I do the review on the E.T I will be weighing it underwater, and noting it's balance point. I am expecting it to be quite light.

 

[jhip]

When I do the review on the E.T I will be weighing it underwater, and noting it's balance point. I am expecting it to be quite light.

Looking forward to the review...

 

[jhip]

Bump for reviews

 

[jhip]

Got a chance to sample my friend's 95cm ET over the weekend. The gun is pretty damn accurate and dead on.

No muzzle jump and the recoil is parallel!

Most would think that this gun is louder due to the shaft exiting a metal track but I noticed NO difference.

The only thing I would modify to this gun is swap the metal wishbones to dynemma cord and weld slightly longer pins behind the existing shark tabs (see below)

Overall, I was pretty impressed with the gun!

 

[azapa]

A bit late but may be relevant: I tried one of these Omer 6.75mm big tabbed spears on my regular Cayman, it is a 90cm, therefore the spear was 130cm. I really lost accuracy more than I could believe. All shots seems about 3" high. I would typically miss 7 out of 10 shots. Terrible.

I then changed back to the original 6.25mm notched spear, and just recently to a Rob Allen 6.6mm mini-tab spear. With the RA in 3 dive days I am at 15 kills to one miss so far.

No idea what happens with this shaft, but it certainly sucked in my gun.

 

[jhip]

A bit late but may be relevant: I tried one of these Omer 6.75mm big tabbed spears on my regular Cayman, it is a 90cm, therefore the spear was 130cm. I really lost accuracy more than I could believe. All shots seems about 3" high. I would typically miss 7 out of 10 shots. Terrible.

I then changed back to the original 6.25mm notched spear, and just recently to a Rob Allen 6.6mm mini-tab spear. With the RA in 3 dive days I am at 15 kills to one miss so far.

No idea what happens with this shaft, but it certainly sucked in my gun.

I'm no expert but maybe the Omer 6.75 shaft was too big and heavy for your 90cm gun?

 

[hteas]

A shaft that was too heavy for a gun would have excessive drop. Azapa's experiece was that the shaft was shooting high.
I was using a 120X6.5 RA shaft on an old RA 90, looking for a faster handling gun. The result was it always shot high, after serious vibrations up close. I was able to see the result of the vibrations by looking at the few fish I was able to hit. There was a lot of damage to the backside of all of them, and large holes.
When I went to a 130 shaft the problem went away.

 

[alex_varlam]

Hy guys!

I bought the 115cm cayman et mimetic from Subprof 3 weeks ago and ive used it 3 times since.
I am EXTREMLY dissapointed with the gun, as soon as i got it and test loaded it a band snaped...
The same band snapped later in the water with no reason at all, 5 cm above the point the wishbone is connected to the rubber (i have a footage as i was filming with a go pro mounted on the gun)
Under the first dive i notice small bubbles coming from around the muzzle and no surprise as i got out of the water i noticed that there was water in the barrel.
I found the gun quite inaccurate as well...but that can be because i wasnt used to it...
And the last drop was when the metal loop where the line or the bungee should fasten came wright of...

I feel like i wasted the money on this gun and i really DONT think anyone should invest in a similar gun.
I recommend a wooden gun...never had a problem with them at least not like this from day 1

Ill try to email Omer about this as i think its their problem and maybe not Subprof's ...anyone had contact with Omer in similar cases?

Any ideas about how to fix leaking gun ?

 

[spaghetti]

Hy guys!

I bought the 115cm cayman et mimetic from Subprof 3 weeks ago and ive used it 3 times since.
I am EXTREMLY dissapointed with the gun, as soon as i got it and test loaded it a band snaped...
The same band snapped later in the water with no reason at all, 5 cm above the point the wishbone is connected to the rubber (i have a footage as i was filming with a go pro mounted on the gun)
Under the first dive i notice small bubbles coming from around the muzzle and no surprise as i got out of the water i noticed that there was water in the barrel.
I found the gun quite inaccurate as well...but that can be because i wasnt used to it...
And the last drop was when the metal loop where the line or the bungee should fasten came wright of...

I feel like i wasted the money on this gun and i really DONT think anyone should invest in a similar gun.
I recommend a wooden gun...never had a problem with them at least not like this from day 1

Ill try to email Omer about this as i think its their problem and maybe not Subprof's ...anyone had contact with Omer in similar cases?

Any ideas about how to fix leaking gun ?

Sounds like your gun is from a defective batch.
The product is under warranty, provided you kept the bill/invoice from the shop. The shop has to fix it, or provide you with a new gun with no leaking or snapping.
If the shop does not respond, contact assistance@omersub.it to the attention of mister Rossoni. Be essential: just mention the problems (barrel leaking water, bands snapping).

Best of luck.

 

[alex_varlam]

Thx Spaghetti, I wrote to Subprof and im waiting for an answer, hopefully ill get my money back and invest them in a wooden gun, I dont wanna see another aluminium gun again...
Or ill write to Omer if they dont wanna take care of it...

 

[spaghetti]

Thx Spaghetti, I wrote to Subprof and im waiting for an answer, hopefully ill get my money back and invest them in a wooden gun, I dont wanna see another aluminium gun again...
Or ill write to Omer if they dont wanna take care of it...

That's okay. But Omer would give you another gun as a replacement, not money back. Or at least that's normally their policy.

And...I have alu guns that are 30 years old and still shooting (see my avatar). But they don't make them like that anymore...

Check here if some custom gun can fit your bill: http://forums.deeperblue.com/spearo-board/85475-indie-minor-speargun-companies.html

 

[jhip]

Took out my 115 ET yesterday for the first time. Yup, it disengaged from the trigger mech upon loading the bands. It must have done this 8 times. Before loading the bands, I made sure the shaft was properly locked into the mech and secured.

I even downsized to 9/16 bands from the stock 5/8

I'm wondering if it's the shaft (improper cut on the notch) or defective trigger mech?

IMO, I believe this gun has very good potential. It just needs some necessary adjustments. Seems to shoot accurate even with the smaller bands.

Contacted the vendor regarding the problem so I'll post an update once a solution has been resolved.

 

[popgun pete]

Hy guys!

I bought the 115cm cayman et mimetic from Subprof 3 weeks ago and ive used it 3 times since.
I am EXTREMLY dissapointed with the gun, as soon as i got it and test loaded it a band snaped...
The same band snapped later in the water with no reason at all, 5 cm above the point the wishbone is connected to the rubber (i have a footage as i was filming with a go pro mounted on the gun)
Under the first dive i notice small bubbles coming from around the muzzle and no surprise as i got out of the water i noticed that there was water in the barrel.
I found the gun quite inaccurate as well...but that can be because i wasnt used to it...
And the last drop was when the metal loop where the line or the bungee should fasten came wright of...

I feel like i wasted the money on this gun and i really DONT think anyone should invest in a similar gun.
I recommend a wooden gun...never had a problem with them at least not like this from day 1

Ill try to email Omer about this as i think its their problem and maybe not Subprof's ...anyone had contact with Omer in similar cases?

Any ideas about how to fix leaking gun ?

Spearguns barrels are traditionally made from round alloy tube as they can be sealed with round rubber bungs, corks (in the old days) or "O" rings mounted on bosses or cylindrical bulkhead inserts that telescope slightly and compress the rubber seal radially outwards against the inside of the tube. Once you depart from round or circular cross-sections the sealing of the barrel becomes much more difficult. Foam fill was one method used on some non-circular barrels (basically rectangular shapes) and another method was to cut cork blocks to the profile shape and then squeeze them into the barrel. Round alloy tubes have not been used for nothing over 65 plus years of speargun manufacture!

 

[divebuddy80]

Update Shaft problems Omer Cayman ET

Hi all,

just an update on the quality of Omer Cayman ET shafts.

I bought such a gun in 130cm when I visited friends in Europe two months ago. It came with a 7mm Omer America One shaft. After having used it only three times, the first shark fin was torn off. I have already emailed Omer twice, but have not received any respone so far. Thus, every now and then that problem occurs again.

The pain in the ass is actually that it is very hard to get other shafts fitting into this gun because high shark fin tabs are necessary and at least on tab needs to have a hole for the shooting line.

I have already emailed Mako spearguns, but they produce such shafts in 7.5 mm only. Does anyone has every replaced the orginial omer shaft by another manufacturer?

Thanks

Karl

 

[FHS]

Look for Salvimar wired pins

 

[divebuddy80]

Hi,

thanks for the hint. But I have tried this shaft when I bought a spare shafts together with the gun. I finally went with a Spora Sub America One shaft (which is essentially the same as omer).

You can see the reason already in the pic above. Holding the salvi shaft horizontal, you see that the vertical part of the wire is exactly 90 degree to the shaft, and the wired tabs are rather small. Thus, when I hooked the omer metal wishbones on the tab, it does not hold and the rubber bands snaped back. This is even more problematic when I tried to hook two rubber bands (the gun has two) onto a single tab. Also changing the metal wishbones to 2.6mm dyneema didn't work. One might argue that 1.5mm dyneema wishbones will do it, but I think thats to tine. The whole shaft only worked when the loading was done extremely carefull, which is hardly the case when diving.

I really hoped that the salvi shaft is an alternative to the faulty omer america on shaft, but for me it is a bit miss-designed.

Cheers

 

[FHS]

That was my fear that the tab wasnt tall enough to hold the wishbone, there are other brands doing wired tabs, Rob Allen used to make those.

I read somewhere else that the firsts batch of those One Shaft had some problems in the welding/gluing of the shark tabs, but now they had fixed it.

Good luck on finding them!

 

[Ron Bakker]

Well I know the Beuchat spears work in the Cayman triggers, and they make a sharkfin type 7mm spear, but you would have to drill a hole in the sharkfin to put the mono through.
http://www.beuchat.fr/index.php?id=35&cat=2&sscat=14&prod=681

a 1.7m would still be o.k in a 130 gun.