The rifle has automatic cocking and manual trigger safety. I am shooting mostly in town. Fluted polymer jacketed rifled steel barrel. Automobile manufactures have adopted them because of their reliability, and we know how to make them with high precision. The rifle weighs less than six pounds so it is very portable. The gas doesn’t care if it is compressed, it’s not going to degrade the life of the powerplant,” he says. In addition, there is the danger of burning the piston seal. Thanks. Gamo Airguns, founded in the 1960s, produce rifles and proprietary Gamo ammunition. Gamo Swarm Magnum 10X GEN 2. The Gamo Shadow has long been a lightweight, powerful air rifle, but this air rifle is even lighter. In 2013 and 2014 Gun Trade World magazine named Gamo the best selling air gun brand in the world. Basic laws of physics apply here, specifically Boyle’s law that states that, with a constant temperature, PxV=c, or Pressure times Volume is constant. The rifle is backed by a five-year warranty. When the gun is cocked — either by a stroke of the barrel or a cocking lever — the spring is compressed. Glad to Know the difference . If you want an adjustable gas spring powerplant, you can a Weihrauch air rifle that is so equipped from http://www.airgunsofarizona.com, but it is significantly more expensive than the Crosman version. All within a 3″ diameter . If you are looking for an air rifle to hunt small game and reduce the number of pests around your home then this .177 caliber rifle would fit the bill. A very informative and straight forward article of which made me definite decide to buy the rifle I was recommended. In 2011, they replaced spring power units with IGT technology in their rifles, and continue to use alternative materials in the manufacture of their pellets. This .177 break barrel rifle incorporates a number of patented technologies for the serious small game hunter. If you have ever seen the gas strut that lifts the back window of an SUV or the rear door of a hatchback automobile, you have seen the basic working mechanism of a Nitro Piston – also known as a gas ram or gas spring – airgun powerplant. THANK YOU! Too much recoil and one crosshair broke. I have a crosman venom nitro spring gun in 177 caliber that I am using for field target matches and it is shooting JSB 8,44 pellets at 925 fps. That’s the best way to do it by my mind, but nobody builds a gun like that. The Theoben-type gas ram found in the HW90 should be repairable. We had chronographs set up at the muzzle, halfway down the range, and at the target. There are twin cheek pads for easy alignment of the eye to sight. My first gun has lost a lot of power aswell, its only about 3 years young any ideas? Vicente again…I forget to say that the cooking effort do not change, I add this since I do not know if help. The new Magnum air rifle features the powerful IGT Mach 1 system. When you take a specific amount of gas in a confined space and then compress it into a smaller space – of course the pressure has to go up from what it was before you compressed it. It can reach velocities of 1420 feet per second with PBA platinum pellets. Can you recommend the correct gas spring that I would need to get to achieve this if they do make one that fits this fps range. Gamo Swarm Fusion 10X, Gen 2. THANKS!!!! They call this the ProShot is the system. I would like to change the gas spring to one that would drop the fps to around 800 fps with the JSB 8.44s and have searched the crosman sites schematic’s for a gas spring that is lower rated fps power but have been unable to determine what gas spring I should get to fit in the nitro venom to give me a fps of around 800 with the JSB 8.44 pellets. At Gamo we have over 50 years experience in designing high powered adult air rifles, airguns and ammunition for plinking, target shooting and pest control. I have heard (from those who have tried it) that reducing the power of a Theoben gas ram to, say, 12-foot-pounds, makes them a lot more fun to shoot and does not reduce accuracy. Spring-piston air rifles use a lever action. A 4x32mm air rifle scope and rings are included with the rifle. Very informative and this clarifies my thoughts..and one remain, do what Nitro means, is it nitrogen ? Thanks!. The skeleton stock, much like a thumbhole stock makes it easier to handle. A gas-ram doesn’t require any special service that I am aware of. Rifles equipped with IGT are more powerful, quieter and more accurate. Caliber. Today Gamo continue to high-powered air rifles, air pistols, optical equipment, and ammunition. That was a question which struck me multiple times as I looked for my next airgun. I recently replaced the spring in my 22 cal air rifle with a gas ram – It certainly made a huge difference! One of the reasons for our success is that we inspect each one of the components we produce. Gas rams offer a number of advantages, Taylor says. Light and accurate it can reach a velocity of 1200 feet per second with platinum alloy pellets or 1000 feet per second with the lead. As you can see from the interview, overpressurizing a gas ram is counterproductive. The mechanism works the same way a conventional spring-piston airgun powerplant: when you cock a breakbarrel rifle equipped with a gas ram or Nitro Piston, you drive the piston down the cylinder (further compressing the gas inside the cylinder, which is comparable to compressing the spring in a conventional spring powerplant) until it latches. The only mistake I made, was puting a quality simmons scope on it. It has a one-year limited warranty. Thanks again. The IGT MACH 1 does seem to help a lot. This rifle is both quiet and powerful. Thanks. It is usably accurate and the supplied scope is very nice. Spring powered. The rifle has fiber optic front sights a and a rear sight adjustable for windage and elevation. It’s A Cracker! Could you comment on the recoil characteristics and the “lock time”– if that’s the right expression– of a gas rammed rifle versus a conventional spring powered rifle? So, if cocking reduces the volume in the chamber to 1/5th the original volume, the pressure will be 5 times as high as the original, in this case 130 bar. If you are searching for a high-velocity air rifle then a Varmint Air rifle is better for you. The first Gamo air rifle was launched in 1961. The sound of the report is reduced by 89.5%. At the heart of the gas spring is a cylinder with compressed gas. Would want to be able to take care of turtles in the pond too. I recently replaced the spring in my 22 cal air rifle with a gas ram – It certainly made a huge difference! It has an ambidextrous synthetic all weather stock with a rubber recoil pad that boasts SWA Shock Wave Absorption technology, designed to absorb the recoil and providing up to 74% more absorption than standard rubber recoil pads. It is powered by a spring … Another highlight of the air rifle is the IGT system. The patent pending SAT Smooth Action Trigger maximizes precision shooting, by ensuring that the trigger pulls through smoothly. The IGT (Inert Gas Technology) from Gamo enhances your hunting or target shooting experience. It’s of the break-barrel variety and is capable of velocities of up to 1250 fps. This break barrel rifle has a barrel of rifled steel with a fluted polymer jacket. Confused on what power plant to select for your next airgun? Perfect for pest control or recreational shooting, this .177 single cocking, break barrel rifle with spring piston is able to deliver a velocity 1250 feet per second with Gamo PBA platinum bullets. It is equipped with dual Monte Carlo cheek pads. For starters, this is the lightest spring air rifle in its power class. My impression of shooting a gas ram is that the lock time is very, very quick, and it is often accompanied by hard “snap” recoil (for an airgun). The patented WHISPER noise technology, with double integrated sound dampener, reduces noise by up to 52% ensuring that this powerful rifle is also very quiet. There is little vibration so the shot is smooth and accurate. This lightweight rifle weighs less than six pounds so it is very portable. I have been looking at the Hatsan 125 in the .25. Available in both .177 and .22 caliber, this rifle is powered by Inert Gas Technology IGT and not a coiled spring piston. If not what would that level be? Thanks This is probably the easiest to shoot spring powered rifle that I own.  And if you leave it cocked, you’re taking some life out of the spring. The Roadster IGT does not have the usual spring. and up to 975 fps with PBA Platinum .22 Cal. You haven’t said how far you need to shoot or how large a varmint you need to deal with, but for snakes and smaller pests up to about 50 feet. This air rifle not only delivers more power, but also keeps the advantages of the IGT MACH 1 piston, such as better accuracy, constant power, and reduced stock vibration during the shot cycle making this rifle a great addition to any outdoorsmen’s collection. Some manufacturers claim as much as 70% noise reduction compared to spring air rifles. Perhaps they could help. You take up almost all the gap between the spring coils to get ultimate performance, and that tends to weaken the spring. Gamo Filter Applied. “To make a spring powerplant really quiet and vibration free, you have to custom fit inner and outer spring guides because every spring is slightly different,” he says. It weighs just 5.3 lbs., which is almost a full pound lighter than the lightweight Shadow. I suggest contacting Crosman customer service. Although Theoben Airguns has gone out of business, you can still buy a breakbarrel rifle with a gas ram powerplant based on Ben Taylor’s design: the HW90. The benefits of IGT air rifles over spring air rifles is higher power, consistent velocity, less recoil, not as loud, all of which makes for improved accuracy. When you cock the gun it compresses the ram until the 26 bar wont compress any further. IGT is a gas strut, similar to the struts used in bakkie canopies to keep the lid up, where the gas is then compressed when breaking the barrel of the air rifle to form a "gas spring". Airriflezone.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. They recycle 96% of the water used, losing only that which evaporates. The air we breathe is 80 percent nitrogen. It has a one-year limited warranty. Gas piston VS spring air rifle Noise. The ambidextrous, synthetic all weather stock with rubberized grip and dual cheek pieces has a checkered grip and forearm to prevent slippage. Please can you GUESS what is the most common cause for this issue? “There is a sweet spot on the pressure vs. velocity curve,” Taylor says. Some folks I have spoken to seem to be of the opinion that the Weihrauch gas rams come from the factory slightly overfilled. The new Gamo G-Magnum 1250 break barrel air rifle, its IGT™ (Inert Gas technology) power system and comes complete with Gamo’s latest thumbhole “Ergogamo” ambidextrous synthetic stock.The G-Magnum has one of the most competitive prices on the high street, a fact which will surely place it within easy reach of any shooters budget. We actually had to design our high powered guns so that over-pressurizing them wouldn’t create reliability problems.”, Taylor told of an interesting experience at the test range one day. Is it possible to buy a adjustable gas piston and get dimensions of different pistons? It is a 177 and is a little light for my needs. thank you, Try http://www.beeman.com or the good folks at http://www.airgunsofarizona.com, Which one is more accurate ? The rifle comes with a 4x32mm Shockproof riflescope with mounts. Spring-Piston air rifles are pretty loud, especially the first time you shoot. We found the gas ram was retaining energy much better at the target. The Turbo Stabilizing System in this .177 rifle brings the spring to a controlled stop in the chamber reducing vibration and recoil and increasing velocity. Spring-powered airguns, or springers, have a cylinder that contains a mainspring with a piston in front of it. There are a few disadvantages to gas rams. 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