FX panthera two full ports?

[Drake267]

Evening chaps, I've just picked up an FX panthera hunter in .22, but I'm a bit confused as to why it has two fill ports. It's fitted with a 480cc bottle up front and a 300cc bottle at the rear, now looking online they all have only the rear fill port, whether it's a double or single bottle gun, so anyone have any idea why mine has one under the block the same as the impact? The gun was bought new in August 2025 so only 9 months old. Pics attached.

 

[Fatbob 59]

The twin ports give the option to tether it to a bottle at the front or rear , presumably for high power competition use

 

[Mr McMain]

The one at the back is to connect a bottle direct. Watch some of the competitions like RMAC or extreme bench rest and you will get the idea.

 

[Drake267]

Cheers guys, just noticed in the manual it shows two on the gun too. It’s certainly not high power, it’s sitting at 11.2 and that’s maxed out on the settings. Just where I like my guns to be fair. Thanks very much for the replies.

 

[insertusernamehere]

I’d blank off the front one myself, it would bug me sticking below the rail

It has two because there are two bottle positions and you may or may not have a bottle on each one.

For example if you had a folding stock on it, you wouldn’t have the rear bottle and charging point.

If you had a dynamic style bottle on the rear, you wouldn’t have the rear charging point.

However I am 99% sure when both bottles are connected like this, the whole system is all under pressure and acting as one pressure vessel.
Therefore you can tether / fill from either port.

 

[Drake267]

I’d blank off the front one myself, it would bug me sticking below the rail

It has two because there are two bottle positions and you may or may not have a bottle on each one.

For example if you had a folding stock on it, you wouldn’t have the rear bottle and charging point.

If you had a dynamic style bottle on the rear, you wouldn’t have the rear charging point.

However I am 99% sure when both bottles are connected like this, the whole system is all under pressure and acting as one pressure vessel.
Therefore you can tether / fill from either port.

I might just do that as I have a blanking plug with it. Next job is to sort out the crap trigger I’ve got the second stage weight set ok but once you take up the first stage the trigger doesn’t reset if you don’t take the shot, first stage weight is also quite excessive. I’ve had enough for tonight as I’ve been messing about for around half an hour with it. I keep forgetting how nice fx triggers are to set up It also seems very air hungry, considering I’ve got 780cc of air bottles it’s used a considerable amount for a few shots setting the trigger up. Reg is set at around 90 bar and the hammer maxed out to get 11.2 ft lbs. It just doesn’t seem as though it’s well set up.

 

[insertusernamehere]

I might just do that as I have a blanking plug with it. Next job is to sort out the crap trigger I’ve got the second stage weight set ok but once you take up the first stage the trigger doesn’t reset if you don’t take the shot, first stage weight is also quite excessive. I’ve had enough for tonight as I’ve been messing about for around half an hour with it. I keep forgetting how nice fx triggers are to set up It also seems very air hungry, considering I’ve got 780cc of air bottles it’s used a considerable amount for a few shots setting the trigger up. Reg is set at around 90 bar and the hammer maxed out to get 11.2 ft lbs. It just doesn’t seem as though it’s well set up.

That’s not sounding well set up at all.
My .25 is set at 123 bar and 2.5 on the hammer and that’s pushing 90+ ft/lbs! That uses approx 6bar a shot from a 300cc bottle.

In a .22 Panthera I’d personally expect full hammer to be about 50-60 bar on the reg with the larger port on the barrel, but obviously it’s not quite that simple.

Generally you want the full hammer power to not be able to exceed the legal limit which can make balancing them a pain.
I’d recommend getting a lock ring (sub12 air gunners) so you can balance it all properly

 

[Drake267]

That’s not sounding well set up at all.
My .25 is set at 123 bar and 2.5 on the hammer and that’s pushing 90+ ft/lbs! That uses approx 6bar a shot from a 300cc bottle.

In a .22 Panthera I’d personally expect full hammer to be about 50-60 bar on the reg with the larger port on the barrel, but obviously it’s not quite that simple.

Generally you want the full hammer power to not be able to exceed the legal limit which can make balancing them a pain.
I’d recommend getting a lock ring (sub12 air gunners) so you can balance it all properly

Cheers mate, I'll do that and have a look at maybe getting it serviced and set up. I think I'm just going to make the trigger a single stage as I don't mind it set that way.