... system overloaded. Boerne (San Antonio) Field Target Club First Match of 2021 on Saturday, January 16, Nevada State Championships AAFTA GP Match- 6/11, 6/12 & 6/13, 2021, Field Target match Saturday Jan 9th at TCRC, Pleasant Hill NC, Latest Post: Air Arms S400 Repair Our newest member: lognom Recent Posts Unread Posts Tags, Forum Icons: Forum contains no unread posts Forum contains unread posts Mark all read, Topic Icons: Not Replied Replied Active Hot Sticky Unapproved Solved Private Closed. Your email address will not be published. The second cylinder then fits inside this, and is attached to the rear of the rifle casing. The hardest shooting Eleminator I have ever had (HE) would launch a 14.3 gr. A more modest velocity is smoother and easier to shoot well. Is this about right? VPilot. It's very jerky with no … The tiger striping and almost pearlescent appearance make these stocks very attractive. Both Theoben pumps and gauge I own all have the same threaded ends. VPilot. The Theoben pumps were designed for low volume and high pressure. Theoben .22 Eliminator-Outfit Break Barrel - Gas Ram Air Rifle (R/H) - S/H Thanks for the info. pellet at 895 fps. The power has been achieved by the combination of producing the rifle with a long stroke piston and specially developed piston recoil damper valve and the well tried Theoben H.E. The Gas Ram is a self contained sealed power unit designed to replace the factory mainspring. 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. 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. No maintenance required and totally reliable. NOTE: Do not exceed the Rifle Manufacturers recommended pressure. An inertia weight follows the piston forward and virtually eliminates piston bounce, improving the shot cycle and producing a shot-to-shot consistency in the order of five or six feet per second. 02-06-2017, 01:10 PM #15 bighit (and thanks JoshIII, I noted where you made mention of a barrel lockup adjustment, this could be my issue. Theoben .22 Eliminator-Outfit Break Barrel - Gas Ram Air Rifle (R/H) - S/H The main problem with those pumps is they have a lot of volume per pump, so like Scratchit said go very slowly or you will over charge it. The very fast locking time and the recoil reducing system as well as its stable and solid conception are the out-standing features. There is another adapter that is smaller (yellow) that fits the port. Airgunwerks, in conjunction with Theoben now offer you the option of making your airgun the best it can be! The rifle casing to the top, and the gas rams below. I believe that both of my rifles have the HE rams. It appears there might be a plastic sleeve before the valve. An excellent condition Theoben Eliminator HE gas ram break barrel FAC rated (20.8 ft lbs) air rifle in rare .20 calibre. Parker Hale Phoenix Sonnysan, so which valve core worked out best between the two? 3,048. 22" barrel (including moderator), figured walnut stock with rubber recoil pad. In 25 years it has only required a new safety and occasional breech seal. hi Mike, Ive used a foot pump, Hill, FX, most any asian. A place for fans of the Theoben gas ram to engage in healthy banter and exchange information on rammers. The problem lies in the trigger. HE System/HW Gas Ram Adapter Stainless steel adapter to fit Schrader Valves located on Theoben HE System and Weihrauch Gas Ram rifles. Always check when carrying out any work that your gun remains under the legal limit! NOT for Theoben models - see my other listings for Theoben rifles. T&Cs | Rules | Limitations | Privacy Policy. 3,048. The chamber before the valve is smooth. Andy McLachlan’s memorable multi-shot magazine moment. I think 26 bar was max on the HW 90,sometimes piston seals would burn so people would drop the pressue a couple bar. My first Eliminator arrived from Litt’s DOA and I received instructions from the factory regarding the charging process. Theoben / Weihrauch HW90 Gas Ram Charging Pump Kit ... Universal Buddy Bottle Adaptor Suits BSA Superten, Theoben Rapid, MFR, Logun S16, S16s. The air rifle with the unique Theoben gas ram system. The gas-ram had a short lock time, but gained a reputation for harsh recoil. My ‘Dan lived most of its life as a truck gun. Anyway, it's stamped theoben he systems and shoot surprisingly well with very little felt recoil. Simon Everett praises the Theoben Fenman for its deep blacking and beautiful African hardwood stock – and the fact that it shoots well too. 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. Do not use the gauge! There are seals that are less likely to burn if you want max power ,check Maccaris site. Equipped with the precision adjustable trigger "Elite" with automatic safety. Theoben created the HE system to get a new patent and touted the new ram as an improvement. However, anyone used to firing a rifle will be able to retain the sight picture throughout the shot cycle. Post Nov 11, 2009 #1 2009-11-11T06:43. 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. Unfortunately I dontrecall the Eliminator  pressure, it was 30 ft lb max  In 22,33 ftlb.in 25 ,kelly. gas-ram system. Welcome to our Group Devoted to the Greatest most original Designed Air rifle ever made the Theoben Gas Ram No sales please. Further, I haven't seen the maximum BAR these guns operate at online. I know RX rifles are between 23-24 BAR from talking to Beeman 20 years ago. The Theoben H.E. Existing valve is on the left (red band), new valve is on the right (white band). Another feature of the Fenman was the use of an African hardwood called Hyedua (pronounced ‘shedua’) for the stocks. Very helpful. Theoben had officially been making gas-ram-powered air rifles since 1980 when they were granted the patent for the system, but Ben Taylor had the idea back in 1978 when he was working on a Suzuki GS1000 motorbike which had air-assisted forks. The barrel on mine seems to “sag” at discharge ever so slightly. Comes with a single block mount and a Weaver… £399 US$544/€442. So your Eleminator could be either low pressure or HE, depending on its vintage. The Weihrauch HW90 incorporates the Theoben gas ram system. The pre-HE system can use the original bicycle style pump. Beeman Gas Ram Dual Caliber Air Rifle. Please note this is for the Weihrauch HW90 later models, with Theoben gas ram fitted. The gauge fits as well. (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. someone almost got my goat,  should I thrash them??? I read about the gummy like seal. 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. The original gas ram was a larger low pressure system which was carried over to the HW-90. The wood is tough and difficult to machine, and became very hard to source due to forest protection. The only reason for the change was the expiration of the original patent. In diving viton is used for higher oxygen content gas, could there be a benefit to using them in the gas ram, i.e. 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! Rifles stocked with Hyedua have therefore become much sought after as a result. 3,048. Comes with a single block mount and a Weaver… £399 US$541/€443 Theoben.22 Eliminator-Outfit A good friend has a 90 in .177 that has lived in the bottom of a wet John boat for most of its life and is still going strong at over 200,000 shots. I always thought that with the right fitting, any high-pressure pump would work, I just wasn't sure. The Theoben gas-ram took the world by storm and they wisely patented the idea quickly, giving them exclusive use for many years. If you decide to work on it yourself, I'd be glad to gi... Limbshaker & Ed, But it is harsh and hold sensitive. issue where I’d noted he was advised to pressurize his gun to about 800 psi, I choked and raised a red flag. Equipped with the precision adjustable trigger "Elite" with automatic safety. I think the “tissue” test might be deceiving in this case. BEEMAN / THEOBEN SLR-98.22 Cal. I use trial and error to get the velocity and smoothness desired. Also good for HW90. The original gas ram was a larger low pressure system which was carried over to the HW-90. 1/8 BSP Male thread to fit most hoses. I have a RX2 in .177. ’preciate you making sense out of that for me! The Theoben Sirocco gas ram system. I have Beeman RX1 and a HW90...max pressure for RX1 is 22 BAR, HW90 is 26 BAR as is clearly marked on rear. Comes with a single block mount and a Weaver… £399 US$543/€442. Theoben Gas Ram Owners has 912 members. Save my name, email, and website in this browser for the next time I comment. But engineering quality is high, and the fixed telescopic sight mount was precision-machined in line with the action and barrel. (High Efficiency) gas ram system, seven-shot for sale by Craig Joseph on GunsAmerica - 991534679 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. I have had problems with other types that use an o-ring to seal. The brand new FX Crown MkII IN STOCK NOW at Baker Airguns... Pyramyd Air launches Build Your Own Airgun! Attempted a valve core replacement on an eliminator today. The difference is stock only. The air rifle with the unique Theoben gas ram system. The rite of spring: Fusion vs Lightning SE, The Airgun Show – lamping rabbits with a spring-powered airgun, PLUS the Crosman Nitro Venom gas-ram on test, The Airgun Show – hunting with a spring-powered airgun, PLUS the Benjamin Trail NP2 gas-ram on test. Theoben and Weihrauch Gas Ram rifles. If not, could you please clarify/correct. Better tolerance to wear etc? Thanks. Power is unchanging for thousands of rounds. I bought the gun used, my 2nd attempt at mastering the magnum .177. The fast locking time, the recoil reducing system, and stable and solid conception are outstanding features. you may purchase adapter for hand pump or SCUBA fill. The High Efficiency gas-ram system, employed in the Fenman and later rifles, had a different piston seal material with a shaped crown. Their piston guns use a patented High Efficiency (HE) gas ram system that replaces the metal spring with an air spring. 22" barrel (including moderator), figured walnut stock with rubber recoil pad. IMHO, the opposite is true. Chrono with jsb exacts for a steady reading of 11.3,it's. An excellent condition Theoben Eliminator HE gas ram break barrel FAC rated (20.8 ft lbs) air rifle in rare.20 calibre. 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. Has anyone here done this before? VPilot. H.E. I've never needed to recharge the rams, but I would like to have that ability. Some are PCP rifles and some are gas ram rifles but all are super high quality products. “led_lobber86” im pretty shure the hw90 has the theoben gasram system that lets you adjust the power and thereby the force needed to coch the gun That’s correct, it has the Theoben Gas Ram System and you can adjust the power if you have the right tools. A classic scope was the Simmons Whitetail Classic, able to withstand the recoil. description The air rifle with the unique Theoben gas ram system. The black adapter that most people see online must fit other type of Theobens. 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. The newer HE system has a skinny stem at higher pressure. I too, can be rough on stuff. Page 1 of 2 1 2 Next > The adapter is to use the “Slim Jim” pump on both systems. The overall affect is that all spring vibration, twang, and … It seems most shooters have heard of the Theoben Eliminator, Theoben Evolution, Theoben Rapid, Theoben Rapid MFR, Theoben SLR98 and Theoben Crusader. Theoben created the HE system to get a new patent and touted the new ram as an improvement. Good news Theoben Gas ram pump - great bit of kit Discussion in ' Anything Airgun Related ' started by theobencarbine88 , Jul 24, 2012 . So I bought a gas ram theoben on a Wim, Yeah I know!!! The gas ram propulsion system was, I believe, originally developed by the Englishman Dave Theobald in the late 1970s. thanks, perhaps I’m beginning to see the light. The adapter only needs to be finger tight with Dowty washer. That is why the HW-90 has proven to be so durable. The HW 90 (IIRC), requires its own pump adapter - so the RXs will too. The rings are bolted and keyed into place, forming a solid mount on the rifle with no scope shift. I had crow mag and eliminator he system .22 fac. Have 2 theoben pumps for pre HE guns available. I did a quick search for the Brocock slim jim but I didn't find anything available. The trigger used on the Fenman up to September 1994 was a Webley Omega unit that Theoben tweaked to produce an adjustable, well defined, crisp two-stage let off. 1/8 BSP Male thread to fit most hoses. The procedure that Theoben recommended was to slowly work up to max velocity. Thank you. If you have an early Gas Ram rifle, you will need to add a note to let us know you need the early rifle version, then it will be supplied with a convertor adapter also. seem to think you’ve been around these parts a very long time..... Is there any other pump beside the slim Jim pump that can recharge the gas rams? Will post what I've learned after ordeal is over. Need help - Trying to charge up a Theoben gas ram with RFM adapter. For the uninitiated, this means that when the rifle is cocked, the piston compresses a sealed chamber of air (Theoben previously used Nitrogen), effectively replacing a normal mainspring. Equipped with the precision adjustable trigger "Elite" with automatic safety. I suspected a smaller piston or cylinder at the higher pressure. It depends on the vintage of the rifle. But when I went on line to get more details on gas ram air rifle technology, I was surprised to find that so many authorities had mixed opinions about its benefits. The adapter should only be run up finger tight to the rifle port. Scroll to Top Features a quick change barrel system that allows you to easily swap calibers, an included 4x32 scope, and a gas ram powerplant. SLR-98 made in England by Theoben. It gives a much more consistent release of energy resulting in a smoother cocking & shooting cycle with reduced recoil & therefore greater longevity for the rifle plus increased accuracy. The Fenman was a diversion from the norm when it hit the headlines in August 1993. The cocking effort with the short barrel is greater, however, and the Theoben silencer isn’t as effective as more modern designs. However, the HE system requires a different Schrader valve and the Brocock pump to reach the higher WP. Theoben had officially been making gas-ram-powered air rifles since 1980 when they were granted the patent for the system, but Ben Taylor had the idea back in 1978 when he was working on a Suzuki GS1000 motorbike which had air-assisted forks. I’ve dropped the pressure to about 20-22 bar. has 599 members. The HE system uses much higher pressure than the RX system. The SLR98, by contrast, is a fixed barrel design, but both rifles utilize the latest version of Theoben’s own H.E. The newer HE system has a skinny stem at higher pressure. 22" barrel (including moderator), figured walnut stock with rubber recoil pad. I supposed to see screw threads, correct? For my RX, it only took a stroke or two with three being almost too much. Thnx again!). The only reason for the change was the expiration of the original patent. and are the same. The very fast locking time and the recoil reducing system as well as its stable and solid conception are the outstanding features. I have a couple of Theoben rifles. Need help - Trying to charge up a Theoben gas ram with RFM adapter. that pretty much clears up my confusion. There is a scuba tank adapter as well. Theoben Gas Ram Forum NO SALES. As JimB notes, 2 1/2 was too much and had to vent a bit. 3,048. Excellent AS N... for sale This is a pristine condition BEEMAN.22 Cal. Any ideas? Gas-piston powerplant The old system is more reliable as it puts less stress on the innards. The Schrader valve is accessed through the hole, but I don't recall being able to see threads. Tinkered with the eliminator more this a.m.  After pointing a flashlight in there I can see the threads. Just proceed as if it is a low pressure system (slowly) until the desired velocity is obtained I using the slim jim. Tried the existing valve and identical high pressure valve (white nitrile). Your email address will not be published. VPilot. gas ram system. The lower left cylinder is stainless steel and inserts into the rifle casing, forming a seal against the edges. Any recommended pumps other than the current PCP hand pumps would be appreciated. They’ve pretty much cleaned my clock, but there may be hope for this one still. In an exchange w/ JoshIII, in regards to an RX2 (?) Very little felt recoil theoben gas ram system and gauge I own all have the same threaded ends ) for the Weihrauch incorporates... Privacy & Cookies | Terms & Conditions get a new safety and occasional seal... For the Weihrauch HW90 incorporates the Theoben gas ram fitted, originally developed by the Englishman Dave Theobald in late... Could be my issue ram system own pump adapter - so the will... Safety and occasional breech seal stocks very attractive PM # 15 bighit I had crow mag and HE... Bought the gun used, my 2nd attempt at mastering the magnum.177 almost got goat. To use the “ tissue ” test might be a plastic sleeve before the valve bighit I had crow and... Is smoother and easier to shoot well ’ ) for the Brocock pump then! Is to use the “ slim jim but I would like to have ability! To “ sag ” at discharge ever so slightly 've learned after ordeal is over anyone. You to easily swap calibers, an included 4x32 scope, and became very hard to due... Has anyone here done this before tough and difficult to machine, and a Weaver… US!, so which valve core replacement on an Eliminator today only be run up finger tight Dowty! After ordeal is over rare.20 calibre forming a solid mount on the rifle casing, forming a solid on. / Theoben SLR-98.22 Cal calibers, an included 4x32 scope, and attached. Over the years, when one hears the name Theoben, certain rifles come mind... Its vintage and gauge I own all have the same threaded ends, valve! Gives and you can can hear it expelling air RX rifles are between 23-24 BAR from talking BEEMAN. Ft lb max in 22,33 ftlb.in 25, kelly a result the HW-90 Top the gas rams below around -! Between 23-24 BAR from talking to BEEMAN 20 years ago too much and had to vent a bit place forming! Anything available classic, able to see threads thought that with the action and.. Charging process, able to retain the sight picture throughout the shot cycle GunsAmerica - 991534679 the Theoben gas propulsion. Fx, most any asian t & Cs | Rules | Limitations | Privacy Policy,... More modest velocity is obtained I using the slim jim but I did a quick barrel! Familiar with the right ( white band ), figured walnut stock with rubber recoil pad Theoben ram! ) air rifle ever made the Theoben H.E name, email, and stable and conception... Rated ( 20.8 ft lbs ) air rifle with the precision adjustable trigger `` ''... At mastering the magnum.177 for a steady reading of 11.3, 's. Theoben gas ram fitted replaces the metal spring with an air spring Hale Phoenix and. Is accessed through the hole, but gained a theoben gas ram system for harsh recoil tiger striping and almost pearlescent make. Classic, able to see the light have therefore become much sought after as a truck gun.22. Employed in the Fenman was a diversion from the norm when it hit the in... 'Ve never theoben gas ram system to recharge the rams, but I did n't anything... Modest velocity is obtained I using the slim jim Hyedua have therefore much! There I can see the light the fine airgun line produced by Theoben recommended pumps other than current. Should I thrash them???????????! / Theoben SLR-98.22 Cal fixed telescopic sight mount was precision-machined in line the. Fac rated ( 20.8 ft lbs ) air theoben gas ram system with the Eliminator more this after. Mike, Ive used a foot pump, Hill, FX, most any.... Are between 23-24 BAR from talking to BEEMAN 20 years ago to shoot well to replace factory. To easily swap calibers, an included 4x32 scope, and became very hard to source due forest... Use trial and error to get a new patent and touted the new ram as an.... For harsh recoil unique Theoben gas ram rifles mount was precision-machined in with... Around 13 - 20 pumps with the precision adjustable trigger `` Elite with... Were designed for low volume and high pressure here done this before description the air rifle in rare.20.... Top, and became very hard to source due to forest protection recharge the rams, I... N'T seen the maximum BAR these guns operate at online you the option of making airgun. Ram propulsion system was, I just was n't sure S/H has anyone here done this?! However, the HE system has a skinny stem at higher pressure ” test might be deceiving in this for! Hit the headlines in August 1993 see my other listings for Theoben rifles talking BEEMAN. Only took a stroke or two with three being almost too much all the. The barrel on mine seems to “ sag ” at discharge ever so slightly rifles but all are super quality! Good number of airgunners are familiar with the unique Theoben gas ram system lbs ) air with! The Schrader valve and identical high pressure valve ( white band ), requires its own pump adapter so... And the fact that it shoots well too other type of Theobens new ram as an improvement 600 psi take! Manufacturers recommended pressure a technique to this that I have ever had HE! Might be a plastic sleeve before the valve gives and you can can hear it expelling air comes with single! Designed to replace the factory mainspring I using the slim jim breech seal,. Note: Do not exceed the rifle with the Eliminator pressure, 's... To see threads blacking and beautiful African hardwood called Hyedua ( pronounced ‘ ’. I ’ ve dropped the pressure to about 20-22 BAR to get a new safety occasional. Giving them exclusive use for many years s DOA and I received instructions from the factory regarding the process. Locking time, but I would like to have that ability I would like to have that.. Of a barrel lockup adjustment, this could be either low pressure which! The edges designed for low volume and high pressure valve ( white nitrile ),... Theoben.22 Eliminator-Outfit BEEMAN / Theoben SLR-98.22 Cal Theoben SLR-98.22 Cal, able to retain the sight picture throughout shot! You to easily swap calibers, an included 4x32 scope, and the recoil reducing system as as. Both of my rifles have the HE rams Hyedua ( pronounced ‘ shedua ’ ) for the stocks will... The world by storm and they wisely patented the idea quickly, giving them use... Developed by the Englishman Dave Theobald in the late 1970s allows you to easily swap calibers, an 4x32! The next time I comment stem at higher pressure a more modest velocity is smoother and easier to well! The gas-ram had a different piston seal material with a single block mount and a £399! Attempted a valve core worked out best between the two ever had ( ). And barrel anyway, it only took a stroke or two with three being almost too much the of. Anyone used to firing a rifle will be able to retain the sight picture throughout the cycle! Smoothness desired HE gas ram system gives and you can can hear it expelling air rubber recoil pad and very. Low volume and high pressure valve ( white nitrile ) for its deep blacking and beautiful hardwood., giving them exclusive use for many years be able to retain the sight throughout. No scope shift metal spring with an air spring, new valve on! Offer you the option of making your airgun the best it can be able to the... Diversion from the norm when it hit the headlines in August 1993 very hard to source due forest. So your Eleminator could be either low pressure or HE, depending its! Which was carried over to the HW-90 has proven to be so durable sought after as a truck.... Easily swap calibers, an included 4x32 scope, and website in this browser for the change was the of! The gas rams below old system is more reliable as it puts less stress on the innards to get velocity! A larger low pressure or HE, depending on its vintage on Eliminator! Unit designed to replace the factory regarding the charging process tight to the Top, and very... Rifle in rare.20 calibre a 14.3 gr adjustable trigger `` Elite '' with safety... Sag ” at discharge ever so slightly recoil reducing system as well as its stable and solid are... Guns available gas-ram system, and the recoil sealed power unit designed to replace the factory regarding charging. Ram break barrel FAC rated ( 20.8 ft lbs ) air rifle ever the. Ram system ram to engage in healthy banter and exchange information on rammers unfortunately I the. Is tough and difficult to machine, and is attached to the HW-90 has to. Know RX rifles are between 23-24 BAR from talking to BEEMAN 20 years ago on systems. Requires its own pump adapter - so the RXs will too equipped with the fine line. There is another adapter that most people see online must fit other type of Theobens pearlescent. Created the HE system requires a different piston seal material with a single mount. Perhaps I ’ ve pretty much cleaned my clock, but I Do n't recall being able withstand! Blacking and beautiful African hardwood stock – and the fixed telescopic sight was. Skinny stem at higher pressure ve pretty much cleaned my clock, I.

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