remove or leave pcp cylinder on the rifle after firing

[kyh]

What is correct way to store the pcp cylinder after firing? Assuming there is still charged air, and I will be using it again in 1 week.

1) Leave the cylinder with charged air on the rifle.

2) Remove the cylinder from the rifle, but leave the charged air inside the cylinder.

3) Remove the cylinder from the rifle and discharged the cylinder.

[yana]

I'd leave it all on. Thats what I do. Even for very long times.
Allthough the manual of my LG300 states that, when storing for longer periods, remove cilinder and discharge air from regulator iirc.
So you can check yr manual for instructions.

[Rover]

Leave it on and forget about it. One less damn thing to fret about.

[vishwadangat]

Just leave it on rifle unless you are not going to use rifle for a month or so.

[ZD]

I've always unscrewed the cylinder after I'm done, although I leave the air in the cylinder. It's a safety thing for me, plus I feel that leaving your cylinder in with all of that pressure isn't advisable for your air rifle. I could be wrong.

[up2spec]

Interesting...

I have noticed many people at a particular local club, after firing and before storing the rifle will do the following:
a. Unscrew cylinder sufficient turns to break the seal;
b. Cylinder remains loosely screwed into rifle with remaining air still in cylinder;
c. Cock and fire the rifle 3 - 4 times with no pellet until no more air is stored within the internal chamber; and
d. Store rifle safely away.

They do this with all makes of PCP Air Rifle: Walther and FWB. I notice particularly when they do it with the Walther rifles it takes quite a few dry-fires to remove all of the air from the internal chamber (3 - 4). For the FWB not as many.

I have an FWB 700 and I don't do this as it doesn't mention it in the user manual. I always just leave the cylinder screwed in until next time I need to fill it.

The only reason I have ever heard/seen for bleeding all of the air from the cylinder is prior to air travel.

[BigAl]

I have a lot of experience from working with a dealer who specialises in PCP sporting rifles. Most of those rifles do not have a removable cylinder. The easiest way to get the seals in one of these rifles to fail are to store it with no pressure in the system. Given that I always keep air in the system, and for guns with a removable cylinder I keep it fully attached to the gun. Seeing the return rates for various manufacturers, added to the failure mode is actually quite interesting. The only thing I don't get to see is data on 10m match rifles, as he doesn't sell enough of them.

Alan

[fa38]

Anschutz recommends for the 8002 air rifle that you unscrew the cylinder about one turn and then cock and fire the rifle until all air is released from the firing chamber. They say that if you unscrew the cylinder until you hear air escaping from between the cylinder and the firing chamber you will damage the seals.
At least that is what is in the instruction manual that came with my rifle .

[fa38]

An excerpt from the 8002 manual

17.2 Releasing the compressed air cylinder
ANSCHÜTZ recommends that the compressed air
cy-linders always be released when the compressed
air rifle is not being used to protect the
housing, valve, seals, springs and for safety
reasons
(no readiness to fire if there is no compressed
air).
Note!
XX Unscrew the compressed air cylinder by approx. just one turn.
Turn only so far that no air comes out.
XX Cock the rifle (see Chapter 12.1) and release the trigger.
Repeat the procedure 3 times (to allow any remaining air
to escape).
)) The compressed air cylinder can then be unscrewed with
no pressure on the O-ring.

Material damage!
Damage to the O-ring if the air pressure is too high.
hh Never unscrew the compressed air cylinder so far that
the compressed air can be heard coming out.

[yana]

Depends on what weapon.
On my walthers? I leave it on.
With my aeron and Tau's I screw it off cause if I leave it on, they'll empty slowly and I'm too lazy to refill