Filling PCP's and " Dive cylinders"

[Clubshot]

they don't have to be weighed mate. co2 is self regulating at about
850psi. once the gas gets to 850 psi it turns to liquid and stays at 850psi. once the cylinder is full of liquid that's it, its full and can't have any more put in it as the doner bottle is the same pressure. a very cheap way of re filling with co2 is from a fire extinguisher or pub bottle. getting a fire extinguisher refilled will cost about £5 and loads of companies fill them.

another good thing about co2 is you don't get a power curve like unregulated pneumatics. co2 pressure stays the same after every shot, so its much more consistent.

I have Shot CO2 Multi Shot pistols for years in PP & IPAS

Reason in 2003 that I invested in the Brocock Tac System

CO2 was made for warmer Weather and in the Cold fails to turn to required Gas and fires liquid - which does give power shots All over the place -

Also shot Rifles power by CO2 - again depending on weather
Shots can be all over the place - Yes have Stuck it over Chrono's and warmed and Jacketed the CO2 Bottle

And @ today's prices as a Imported Item - they are not Cheap to use against

Bottle Air or a Pump

As in All cases Check out check out other Shooters @ local Air Gun Clubs

As ask their Views

BOB/R

[pigeonian]

thankyou ....very beneficial read to us novices

[jetski]

I have Shot CO2 Multi Shot pistols for years in PP & IPAS

Reason in 2003 that I invested in the Brocock Tac System

CO2 was made for warmer Weather and in the Cold fails to turn to required Gas and fires liquid - which does give power shots All over the place -

Also shot Rifles power by CO2 - again depending on weather
Shots can be all over the place - Yes have Stuck it over Chrono's and warmed and Jacketed the CO2 Bottle

And @ today's prices as a Imported Item - they are not Cheap to use against

Bottle Air or a Pump

As in All cases Check out check out other Shooters @ local Air Gun Clubs

As ask their Views

BOB/R

you don't understand how co2 works. when pressure is released the remaining co2 loses heat. if you insulate the cylinder it means it will take longer to level out with the outside temperature again. this is why you are getting a power curve. co2 and air are 2 completely different ball games and need to be treated as such. if you use co2 properly you will not get a power curve and its as cheap to use as air. my co2 rifles will shoot at full power below freezing you just need to know how to use it

[datadave]

For a mainline springer user recently turned to 'playing' with CO2 via the cheapo Chinese rifles and thinking of trying them on air, all of this info has been really useful. It seems that going full-on PCP is going to mean spilling a lot of beans in buying equipment. The pumps don't seem a bad idea - cost wise - particularly for low pressure operation - which the TH78D's and similar - would have to be on air, being only designed for operation at about 840 psi on CO2.

I'm still very much of two minds which way to go - the consistency, accuracy and light weight of the PCP's eg Falcon - seems very appealing, but for a pensioner, the cost is a major hurdle.

On a technical point - air bottles have to be regularly tested and inspected to get a 'ticket' for their continued use. But - the resevoir cylinders on the PCP's themselves are never mentioned in this respect. Do they have to be inspected/tested regularly as they are pressure vessels too? Do they not come under the regulations?

One option which seems to have appeal is the Benjamin Discovery Dual Fuel - presumably the 'best of both worlds'. What do peeps think of these? Seems that they could tick quite a few boxes for me - price, weight, ease of fill - only 2000 psi required!

[Brocky69]

Hi. Very very new to pcp guns. I've bought two now. 1 I use a hand pump. The other I charge of a friends bottle. I would like to know if I can use a co2 bottle. The ones used in pubs. As I've got a few kicking around, which I use on my mig welder. Will this damage my guns?. Has anyone used them before. What are the pitfalls. If it's poss. What gear/make/type of equipment do I require. As I use a preheater on my bottle for welding. This must be due to the amount I'm drawing off it. Any advice would be great. I'm happy to buy a 300bar charging kit. But if I can use what I have all the better. I know somewhere on the Internet the answers will be there. But I would sooner like to ask, like minded people. Cheers again.

[jetski]

@ brocky69... what guns are you talking about? if they are designed to take air then the seals won't hold co2. they will leak straight away. depending on what guns they are you could change all the seals and run them on co2 but in reality you would be crazy to do that @ datadave... if you filled a 78 with air to 850 psi you will likely get about 5 full power shots and a crazy power curve. you will need a new gas tube so you can use higher pressure and also a regulator as the current valve is designed for co2. another option is to buy an hpa paintball bottle with regulator for £45 and run it remotely. or even better swap your 78 for a 79 and screw the bottle and regulator directly on the 79

[Brocky69]

Hi jetski. I've took the plung and bagged me a 300bar 12l charging kit. Dam good price too. 229 complete including free refills. From www.scubapursuits.com. In Solihull west mids. Also have branches in Cannock and Newcastle. Really helpful too. Even 7L kits 139. The two guns are a venom viper .22. And a rohm twinmaster top. Cheers for the info. I took your advice. I dont want to ruin them by cost cutting on using the wrong stuff. Cheers.