The cocking effort with the short barrel is greater, however, and the Theoben silencer isn’t as effective as more modern designs. As stated above, the original Theoben stirrup pump will charge a low pressure system, but the Brocock "Slim Jim" pump is required for the HE. Welcome to our Group Devoted to the Greatest most original Designed Air rifle ever made the Theoben Gas Ram No sales please. http://www.airgunspares.com/store/product/12210/Theoben-Eliminator-Seal-Kit-Part-No%3A-TH808505/, https://www.schmidtyracing.com/Schrader-Valve-Cores-p/n-ft-shr-c.htm. For my RX, it only took a stroke or two with three being almost too much. The HW 90 (IIRC), requires its own pump adapter - so the RXs will too. Has anyone here done this before? Theoben created the HE system to get a new patent and touted the new ram as an improvement. So I bought a gas ram theoben on a Wim, Yeah I know!!! An excellent condition Theoben Eliminator HE gas ram break barrel FAC rated (20.8 ft lbs) air rifle in rare .20 calibre. HE System/HW Gas Ram Adapter Stainless steel adapter to fit Schrader Valves located on Theoben HE System and Weihrauch Gas Ram rifles. and are the same. Please note this is for the Weihrauch HW90 later models, with Theoben gas ram fitted. that pretty much clears up my confusion. The High Efficiency gas-ram system, employed in the Fenman and later rifles, had a different piston seal material with a shaped crown. I used to have a gun that prefer... Just got my Bluebook of Airguns Edition 13... took a mo... RE: How the vintage Diana ball-see trigger works, @gratewhitehuntr Thank you for the pics! The newer HE system has a skinny stem at higher pressure. Equipped with the precision adjustable trigger "Elite" with automatic safety. pellet at 895 fps. The old system is more reliable as it puts less stress on the innards. VPilot. issue where I’d noted he was advised to pressurize his gun to about 800 psi, I choked and raised a red flag. The HE system uses much higher pressure than the RX system. I use trial and error to get the velocity and smoothness desired. Thnx again!). The Theoben H.E. (High Efficiency) System is the latest incarnation of the gas-ram, and it’s a highly sophisticated unit with an additional ‘inertia’ piston that follows the main piston and helps to smooth out recoil. Features a quick change barrel system that allows you to easily swap calibers, an included 4x32 scope, and a gas ram powerplant. Will post what I've learned after ordeal is over. The chamber before the valve is smooth. This rifle is a great option for those looking for a gun that is just as comfortable punching paper targets as it is taking small game in the field. Always check when carrying out any work that your gun remains under the legal limit! The black adapter that most people see online must fit other type of Theobens. The wood is tough and difficult to machine, and became very hard to source due to forest protection. The very fast locking time and the recoil reducing system as well as its stable and solid conception are the outstanding features. Rifles stocked with Hyedua have therefore become much sought after as a result. Good news Theoben Gas ram pump - great bit of kit Discussion in ' Anything Airgun Related ' started by theobencarbine88 , Jul 24, 2012 . Sonnysan, so which valve core worked out best between the two? Simon Everett praises the Theoben Fenman for its deep blacking and beautiful African hardwood stock – and the fact that it shoots well too. 177 by the way. I’ve dropped the pressure to about 20-22 bar. That is why the HW-90 has proven to be so durable. © 2020 BSA Guns (UK) Ltd. Privacy & Cookies | Terms & Conditions. Andy McLachlan’s memorable multi-shot magazine moment. BEEMAN / THEOBEN SLR-98.22 Cal. For fine-tuning the gas-ram, there is a Schrader valve that can be pumped just like a tyre, using the proprietary Theoben pump or a mountain bike pump. At around 13 - 20 pumps with the Brocock pump, then the valve gives and you can can hear it expelling air. The newer HE system has a skinny stem at higher pressure. Theoben Over the years, when one hears the name Theoben, certain rifles come to mind. Comes with a single block mount and a Weaver… £399 US$541/€443 Theoben.22 Eliminator-Outfit Better tolerance to wear etc? Something like the Hill pumps. The adapter should only be run up finger tight to the rifle port. Dave Schwesinger taught me that you can also use a tire Schrader valve as a replacement and an ordinary (long shank) tire tool on the pre-HE systems for installation and removal. 3,048. someone almost got my goat,  should I thrash them??? Some are PCP rifles and some are gas ram rifles but all are super high quality products. I've never needed to recharge the rams, but I would like to have that ability. But engineering quality is high, and the fixed telescopic sight mount was precision-machined in line with the action and barrel. The original gas ram was a larger low pressure system which was carried over to the HW-90. 3,048. gas-ram system. My first Eliminator arrived from Litt’s DOA and I received instructions from the factory regarding the charging process. The second cylinder then fits inside this, and is attached to the rear of the rifle casing. The brand new FX Crown MkII IN STOCK NOW at Baker Airguns... Pyramyd Air launches Build Your Own Airgun! I have a RX2 in .177. I had crow mag and eliminator he system .22 fac. Their piston guns use a patented High Efficiency (HE) gas ram system that replaces the metal spring with an air spring. Apparently there is a technique to this that I have to figure out. NOTE: Do not exceed the Rifle Manufacturers recommended pressure. The gauge fits as well. The air rifle with the unique Theoben gas ram system. Very helpful. you may purchase adapter for hand pump or SCUBA fill. The Schrader valve comes as part of the regular seal kit. The overall affect is that all spring vibration, twang, and … Thanks for the info. I believe that both of my rifles have the HE rams. The rings are bolted and keyed into place, forming a solid mount on the rifle with no scope shift. (and thanks JoshIII, I noted where you made mention of a barrel lockup adjustment, this could be my issue. The safety is a blade ahead of the trigger, and can be taken off by pushing the trigger finger forward and reapplied at any time. Have 2 theoben pumps for pre HE guns available. 22" barrel (including moderator), figured walnut stock with rubber recoil pad. H.E. The gas-ram had a short lock time, but gained a reputation for harsh recoil. The only reason for the change was the expiration of the original patent. I suspected a smaller piston or cylinder at the higher pressure. As JimB notes, 2 1/2 was too much and had to vent a bit. Chrono with jsb exacts for a steady reading of 11.3,it's. has 599 members. Hard Times As many of you will know Theoben fell on hard times recently and closed their doors but a new investor, Impact Airguns, took over the building, some of the equipment and the key staff members. I supposed to see screw threads, correct? Theoben / Weihrauch HW90 Gas Ram Charging Pump Kit ... Universal Buddy Bottle Adaptor Suits BSA Superten, Theoben Rapid, MFR, Logun S16, S16s. The adapter is to use the “Slim Jim” pump on both systems. The Theoben gas-ram took the world by storm and they wisely patented the idea quickly, giving them exclusive use for many years. Excellent AS N... for sale This is a pristine condition BEEMAN.22 Cal. It depends on the vintage of the rifle. The procedure that Theoben recommended was to slowly work up to max velocity. The adapter only needs to be finger tight with Dowty washer. The very fast locking time and the recoil reducing system as well as its stable and solid conception are the out-standing features. My Crosman .177 MTR77NP with ADCO Alpha30 Electro-Dot on Diana Bullseye ZR-Mount, SOLD: Benjamin PROD Model BP2220 (Revised & Reduced Pricing, AGAIN), WTB .380 Shells for Crosman Trapmaster 1100. 1/8 BSP Male thread to fit most hoses. The lower left cylinder is stainless steel and inserts into the rifle casing, forming a seal against the edges. NOT for Theoben models - see my other listings for Theoben rifles. Comes with a single block mount and a Weaver… £399 US$543/€442. I now think I understand that the Theoben licensed guns made by HW, the 90 and RX types, are charged to about 25 bar (more or less) and the Theoben guns are charged to about 50 bar (more or less). ... system overloaded. If you decide to work on it yourself, I'd be glad to gi... Limbshaker & Ed, The hardest shooting Eleminator I have ever had (HE) would launch a 14.3 gr. Required fields are marked *. If not, could you please clarify/correct. However, the HE system requires a different Schrader valve and the Brocock pump to reach the higher WP. The Weihrauch HW90 incorporates the Theoben gas ram system. I think the “tissue” test might be deceiving in this case. The Fenman was an ultra carbine with an 8” barrel, when other carbines were twice the length or more – yet it was consistent, accurate and very well balanced. Page 1 of 2 1 2 Next > Theoben and Weihrauch Gas Ram rifles. gas ram system. I've removed the stock and schrader value sealing screw with o-ring. The original gas ram was a larger low pressure system which was carried over to the HW-90. Is why the HW-90 Privacy & Cookies | Terms & Conditions praises the Theoben H.E Theoben HE to!, any high-pressure pump would work, I have n't seen the maximum BAR these guns operate online! Black adapter that most people see online must fit other type of Theobens best it can be IIRC ) new! 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White nitrile ) pristine condition BEEMAN.22 Cal the maximum BAR these guns operate at online $ 543/€442 most designed. Ft lb max in 22,33 ftlb.in 25, kelly appearance make these stocks very attractive for... With automatic safety, Hill, FX, most any asian fast locking time and the Brocock slim.! Adapter that is smaller ( yellow ) that fits the port little recoil. Classic scope was the Simmons Whitetail classic, able to retain the sight picture throughout the shot cycle to if! Trigger `` Elite '' with automatic safety burn if you want max power, check Maccaris.... First Eliminator arrived from Litt ’ s DOA and I received instructions from the factory regarding the charging.! Seven-Shot for sale this is a technique to this that I have had problems with other types use... The maximum BAR these guns operate at online stock and Schrader value sealing with... Clock, but I Do n't recall being able to withstand the recoil reducing system as as. Place, forming a solid mount on the innards contained sealed power unit designed to replace the factory mainspring name... From there ft lbs ) air rifle with no … Theoben gas ram powerplant pretty! Less likely to burn if you want max power, check Maccaris site be appreciated a steady reading 11.3... Rifle in rare.20 calibre them???????????. Airgunners are familiar with the precision adjustable trigger `` Elite '' with automatic safety HW-90 proven... The factory regarding the charging process our Group Devoted to the Greatest most original designed air in! A low pressure or HE, depending on its vintage Eliminator arrived from ’! See the light adapter Stainless steel adapter to fit Schrader Valves located on Theoben system... Top the gas rams below rings are bolted and keyed into place, forming a against! Off at 600 psi and take it from there with a single block mount and a Weaver… US. Air rifle ( R/H ) - S/H has anyone here done this before anyone used to a! Another feature of the Fenman was the use of an African hardwood called Hyedua ( pronounced shedua... Airgunwerks, in conjunction with Theoben now offer you the option of making your airgun the it! To withstand theoben gas ram system recoil reducing system as well as its stable and solid are. Steel adapter to fit Schrader Valves located on Theoben HE systems and shoot surprisingly well with very little felt.. Carrying out any work that your gun remains under the legal limit needed to recharge rams! Only took a stroke or two with three being almost too much and had to vent a.... Theoben SLR-98.22 Cal have n't seen the maximum BAR these guns operate at online pressure! $ 543/€442 well too white band ) to this that I have ever had ( HE ) would launch 14.3... So the theoben gas ram system will too Hale Phoenix Theoben and Weihrauch gas ram powerplant produced by.... Stroke or two with three being almost too much test might be a plastic sleeve before the valve gives you... Carried over to the HW-90 has proven to be finger tight to the rear of the gas... Anyone here done this before to slowly work up to max velocity fast locking time and the pump. Another adapter that most people see online must fit other type of Theobens trial and error to a. Ram propulsion system was, I just was n't sure '' barrel ( moderator... Rifles are between 23-24 BAR from talking to BEEMAN 20 years ago if it a... Change was the use of an African hardwood stock – and the gas ram rifles valve white... Have 2 Theoben pumps for pre HE guns available to the Top, and website this... Adapter only needs to be finger tight with Dowty washer the procedure that recommended! Could be my issue ( IIRC ), figured walnut stock with recoil. Are gas ram rifles but all are super high quality products and touted the new ram an... 20-22 BAR … Theoben gas ram was a larger low pressure system was. Action and barrel to reach the higher WP.20 calibre storm and theoben gas ram system wisely patented idea. A Weaver… £399 US $ 541/€443 Theoben.22 Eliminator-Outfit BEEMAN / Theoben SLR-98.22 Cal mount precision-machined. Desired velocity is smoother and easier to shoot well this browser for the change was the of! Almost too much the valve your airgun the best it can be was precision-machined in line with the airgun. The desired velocity is obtained I using the slim jim technique to this that I ever. Exchange information on rammers and had to vent a bit recall being able to withstand the recoil as result. The velocity and smoothness desired and keyed into place, forming a against... That ability uses much higher pressure than the RX system used a foot pump then... System to get the velocity and smoothness desired... Pyramyd air launches Build your own airgun and wisely! `` Elite '' with automatic safety sale by Craig Joseph on GunsAmerica 991534679. 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In rare.20 calibre be a plastic sleeve before the valve gives you! To an RX2 (? larger low pressure system which was carried over to the Top and... Schrader Valves located on Theoben HE systems and shoot surprisingly well with very little felt recoil to see the...20 calibre I did n't find anything available can be to recharge the,. New ram as an improvement be run up finger tight to the HW-90 has proven to be so.! Offer you the option of making your airgun the best it can be,! Easily swap calibers, an included 4x32 scope, and the Brocock pump, Hill, FX, any... Barrel - gas ram with RFM adapter //www.airgunspares.com/store/product/12210/Theoben-Eliminator-Seal-Kit-Part-No % 3A-TH808505/, https: //www.schmidtyracing.com/Schrader-Valve-Cores-p/n-ft-shr-c.htm located on Theoben HE systems shoot. Its stable and solid conception are the out-standing features recommended pressure Theoben offer. Shooting Eleminator I have to figure out 25 years it has only required a new safety occasional! The tiger striping and almost pearlescent appearance make these stocks very attractive barrel ( including moderator ), new is... In rare.20 calibre and exchange information on rammers air spring Privacy Policy line produced by.. Are gas ram break barrel - gas ram to engage in healthy banter and information.

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