A forum to talk about Olympic style shooting, rifle or pistol, 10 meters to 50 meters, and whatever is in between. Hosted by
It is currently Fri Feb 23, 2018 5:26 am

All times are UTC - 6 hours [ DST ]

Forum rules

If you wish to make a donation to this forum's operation , it would be greatly appreciated.

Post new topic Reply to topic  [ 6 posts ] 
Author Message
PostPosted: Thu May 04, 2017 10:12 am 

Joined: Wed Sep 18, 2013 8:15 pm
Posts: 82
If stored for a few weeks or even months, should the cylinders be discharged or left charged? Should the pistol be stored with a cylinder installed? Mine is a Steyr LP10 if that makes a difference. Thanks.

PostPosted: Thu May 04, 2017 11:04 am 

Joined: Tue Dec 26, 2006 4:25 am
Posts: 87
Location: Hessen, south of Kassel
I last used my LP10 in late 2014 and then had a break for archery until April this year. The charged cylinder stayed in place.
No change was observed.

PostPosted: Thu May 04, 2017 1:18 pm 

Joined: Sat Nov 15, 2008 4:20 pm
Posts: 5180
Location: Scottsdale AZ
I've heard of some recommending this. I just don't problems (two PCPs). They lay in the box while I'm shooting my "Extra Special Whiz-Bang" SSP.

PostPosted: Thu May 04, 2017 6:42 pm 

Joined: Thu Mar 04, 2010 10:40 pm
Posts: 56
Location: MICHIGAN
I remember reading this a while back

The eighth post into this is a link from Chia to this message from Pilkguns

I believe there is a little mix up in information here. To cover it all,
1: cylinders can be left full , empty or nearly empty, doesn't really matter
2: The cylinders should be removed from the gun when not in use or ideally unscrewd enough to allow the air to bleed back out of the regulator. The cylinder should be unscrewed to take the pressure off the regulator, as the pressure is what kills both the internal o-rings and the belleview washers inside the reg over time. The less amount of time you ahve pressure in the reg, the longer that part will function before needing a rebuild.
3:Always totally unscrew the cylinder before trying to screw it back in, otherwise you run a very probable risk of pinching the o-ring and causing it to fail prematurely.
4:Wheterh you leave the cylinders on the gun, or off the gun, expect to have to make 3 or 4 cycles of air through the system (shooting with no pellet) before the reg is functiong properly, akin to warming up your car engine. The rubber can stick in either the pressureized or non-pressurized condition and needs a few cycles to function smoothly again.

Thus endeth this epistle.

PostPosted: Thu May 04, 2017 10:19 pm 

Joined: Fri Oct 09, 2009 6:13 pm
Posts: 156
Location: Dallas, Texas
I've had an LP-10 since 2001, I think. Steyr-Mannlicher model, before they put gauges on cylinders. Never unscrewed the cylinder. Never had a problem.

PostPosted: Fri May 05, 2017 7:56 am 

Joined: Sat Sep 04, 2004 6:04 pm
Posts: 1553
Location: Massachusetts
I suspect the issue varies considerably with the internal design & materials used in the regulators. I know the Belleville springs used in the Benelli Kite are plain steel, and can rust over time if the pistol is shot with moist air. I would expect that others may use stainless steel springs. I'm guessing the biggest issue is the seals. Stored under pressure for a long period of time, they can deform and either leak or not slide the way they should.

As an example, the team I help coach has a bunch of Tau-7's, which only run at CO2 pressures. The bulk fill adapters we use have an O-ring valve seal inside. If the pistols are stored under pressure, the O-ring slowly mashes until it closes off the path for the gas along the square sides of the valve stem, and you can't fill them any more.


We are switching to slightly smaller, harder O-rings to see if we can extend the service interval.

Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 6 posts ] 

All times are UTC - 6 hours [ DST ]

Who is online

Users browsing this forum: No registered users and 3 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group