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Air Gun Home Forum Index » Rifles » Umarex AirMagnum 850-Walther 1250 Dominator mods Goto page Previous  1, 2, 3, 4  Next    View previous topic :: View next topic    Posted: Fri Feb 29, 2008 8:46 am CristiV New Member Joined: 29 Feb 2008 Posts: 4 Location: Roumanie http://www.network54.com/Forum/583201/thread/1198976255/HPA+Overview   Posted: Fri Feb 29, 2008 2:51 pm dbarr Member Joined: 24 Jul 2007 Posts: 19 Thank you Cristi! That is a great link! The differenence with the project on my blog is that I'm not satisfied with the performance of a simple HPA conversion. I am trying to figure out what modifications (within limitations) will give me the best possible performance. That link you posted has information that may be useful to me . Thanks, DB   Posted: Fri Feb 29, 2008 4:25 pm CristiV New Member Joined: 29 Feb 2008 Posts: 4 Location: Roumanie dbarr wrote: Thank you Cristi! That is a great link! The differenence with the project on my blog is that I'm not satisfied with the performance of a simple HPA conversion. I am trying to figure out what modifications (within limitations) will give me the best possible performance. That link you posted has information that may be useful to me . Thanks, DB You're welcome. Sorry for my English.   Posted: Fri Feb 29, 2008 8:06 pm broommaster2000 Moderator Joined: 10 Mar 2007 Posts: 5714 Location: City of Groningen, Groningen, The Netherlands dbarr wrote: For anyone interested, I've started a blog on the subject of using air to power things. In it I am covering the conversion of an RWS 850 AirMagnum to PCP . DB Dude, that is awesome. _________________ BIG GAP   Posted: Tue Mar 04, 2008 8:13 am CristiV New Member Joined: 29 Feb 2008 Posts: 4 Location: Roumanie For anyone interested to convert 850 in a PCP: http://www.ratkill.com/bb3/viewtopic.php?f=3&t=2978&start=0&st=0&sk=t&sd=a (first step, disassembly) Here is a very nice HPA conversion...   Posted: Fri Mar 14, 2008 4:38 pm rbva Member Joined: 16 Aug 2007 Posts: 29 Location: Dallas, Texas Phil's Mod Phill's work is nice and clean. Roald.   Posted: Sat Mar 15, 2008 8:19 am cw Banned Joined: 10 Feb 2008 Posts: 1771 That 1250 is sweet! I have been seriously considering one of those for a while. I've made up my mind, two or three paydays from now, Im ordering one and another 3200 Elite. I like Walther. They reek of quality. I have a 9x19mm pistol made by them and it is sweet. It sits in the drawer of my night stand right next to my bed. It would be very unwise to break in to our house. CW   Posted: Sun Mar 16, 2008 1:34 pm dbarr Member Joined: 24 Jul 2007 Posts: 19 Nice mod from Phil! That mod from the ratkill site makes me nervous. The 850 AirMagnum wasn't designed to handle the pressure he is putting through it! DB   Posted: Sun Mar 16, 2008 4:47 pm rbva Member Joined: 16 Aug 2007 Posts: 29 Location: Dallas, Texas dbarr wrote: Nice mod from Phil! That mod from the ratkill site makes me nervous. The 850 AirMagnum wasn't designed to handle the pressure he is putting through it! DB Yeah... un-regulated. that could pop an o-ring or two.   Posted: Fri May 16, 2008 11:17 pm 850 New Member Joined: 13 Feb 2008 Posts: 5 Location: Sydney hey all, just wondering if anyone knows of a refillable gas cylinder (88g) to fit my 850AM? i`m happy using Co2, just want to refill my own!!   Posted: Fri May 16, 2008 11:32 pm rbva Member Joined: 16 Aug 2007 Posts: 29 Location: Dallas, Texas Hi, There is a whole site dedicated to the 850 AM over here: http://www.network54.com/Index/84463 Look at the top right of the page there is a link to Bryan and Associates, they make and sell and valve end that screws onto the end of your 88g tank that has a pin valve in it, exactly what you want. mail them and find out about shipping though, I know they do ship out your way so it shouldn't be a problem. Let us know how it goes okay? Roald.   Posted: Sat May 17, 2008 3:12 am 850 New Member Joined: 13 Feb 2008 Posts: 5 Location: Sydney thanks heaps for that roald, i`m so glad i came across this site!! i`ll check out the link you mention, i couldn`t believe there wasn`t an aftermarket refill cylinder- or this valve!!   Posted: Sat May 17, 2008 7:59 am AirGunEric Site Admin Joined: 20 Jan 2007 Posts: 6908 Location: "Out There" The direct link to Bryan and Associates is: http://www.bryanandac.com/new_page_5.htm _________________ ` I'd say "I care." But I'd be lying. Canadian Airgun Supplier: http://www.scopesandammo.com/storefront The valve...   Posted: Sat May 24, 2008 5:26 pm cliffspot Veteran Member Joined: 15 Jun 2007 Posts: 132 Location: Miami via Hawaii .. is not really lacking in design. it was designed to use CO2, thus to prevent LIQUID CO2 from entering the system. Of course when the pin and filter are removed you'll get greater flow. There is another guy doing mods on the valve for CO2 and HPA. These guys have broken a lot of ground on this gun: http://www.network54.com/Index/84463 and more stuff: http://www.airguninfo.com/850index.shtml Good luck! _________________ There are no accidents; only ignorance, mechanical failure, and acts of God! I have loaded over 6 million rounds in the last 5 years and STILL have not seen it all!   Posted: Sun May 25, 2008 5:34 am 850 New Member Joined: 13 Feb 2008 Posts: 5 Location: Sydney does anyone know if all 9oz paintball tanks have the same thread? i`ve ordered an adapter for my 850 so that it can take a 9oz tank, now i`m wondering if the threads on these tanks are all the same? also i`ve seen aluminium and steel 9oz paintball tanks, which would be my best bet and why? sorry about all the questions, paintball/Co2 air gun mods are not big down here in oz!! 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