Show em - Single stroke/Pump Pneumatics, the more exotic the better!
- Thread starter steve123
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Yes, a break barrel air rifle is indeed considered a single stroke pneumatic air rifle. Break barrels use a spring or gas piston that's compressed and then released with a single action of the barrel, making it a single-stroke pneumatic mechanism.
Here's a more detailed explanation:
- Single-stroke Pneumatic:
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This refers to air guns where a single action of the cocking lever is all that's needed to compress the air for propulsion.
- Break Barrel Mechanism:
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The "break" in "break barrel" refers to the action of bending the barrel down and then lifting it back up. This action compresses the spring or gas piston within the rifle.
- Spring/Gas Piston:
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Break barrels use either a spring or a gas piston to power the shot. The spring or gas piston is compressed when the barrel is broken open. When the trigger is pulled, the compressed spring or gas piston pushes a piston forward, which in turn compresses air behind the pellet, launching it from the barrel.
- Pneumatic:
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Break barrels rely on compressed air to propel the pellet, hence the "pneumatic" aspect.
- Single Action:
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The entire process of compressing the spring/gas piston, loading a pellet, and preparing the rifle for firing is done with a single action of the barrel break.
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I think most people including myself do not consider a spring or ram piston air rifle a pneumatic. It’s not the compressed air in the chamber that moves the pellet. It’s the chemical change that does. A true pneumatic “stores” the air upon the pumping cycle.
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A true SSP is when when pumping action compresses the air for later use . and thus no felt recoil when the air is released .
A spring powered action . their is no air stored .
A spring powered action . their is no air stored .
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thankyou for all the explanations, interesting read , But they do not apply to the springer action in an air gun .That's fine. No big deal.
If i have this right , think of the spring in an air gun like water in a garden hose . the water flows through the hose and just flows out . But when the water hits the nozzle it is compressed to a small diameter opening and "shoots " a greater distance . easiest visual i can come up with .
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There is no chemical change involved, unless there is diesling. A springer stores energy via the cocked spring. When it is released and drives the piston forward that compresses air much like a SSP or pump up but much faster. It is still compressed air that drives the pellet. so in reality a springer is a pneumatic. With ram type you have two cyclinders, one is may be closed and when you cock the gun it compresses the air or gas in that cylinder.When that piston is released with great pressure behind it it drives forward compressing air in the other cylinder which drives the pellet down the barrel. That's why all of these guns, springers, ram , SSP, pump and PCP are called air gun, somewhere at some time air is compressed to drive the pellet, or slug down the barrel.
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Oh I am aware of that, but we commonly have 4 categories of air guns, spring air, single stroke pneumatic, pump up and pre charged pneumatic. pump up and pre charged are really the same thing, the pump up just has an integral pump where the pcp uses an external pump and a tank that hold much higher pressure air. That is as I say 4 categories, the term by which they are marketed, sold and commonly known as.
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This has been the accepted categories of Airguns for decades. Taken from the Beeman catalog 1983.
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Yep It is a well known fact of physics that when air is compressed it is heated, and when it expands it cools. Both happen rapidly in a spring air gun. In the other pneumatic types, pump up, single stroke or pcp the heat build up is slower, but the cooling is als very rapid.
A physical phenomena not a chemical reaction
A physical phenomena not a chemical reaction
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Okay. I don’t remember where I read this. Probably got it mixed up. Not really the point though. A Springer has never been considered a pneumatic. This is the point in discussion.
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As young kids we thought our red riders operated something like a "pool cue " the spring was attached to a rod that struct the
BB and sent it flying . We were 8 at that time .
BB and sent it flying . We were 8 at that time .
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A single stroke pneumatic will not accept more than one pump stroke. Instead of an onboard reservoir, it has a chamber that the pump head slides inside. When the gun is pumped, the pump head compresses air in this chamber. The pump head holds the pressurized air inside the chamber — there is no inlet valve like you would find on the reservoir of a multi-pump. If you were to open the pump handle for a second stroke, it would fly open from the force of the pressurized air inside, and all the compressed air from the first stroke would be released.
So, a break barrel is certainly NOT a single stroke pneumatic as it has no onboard air reservoir and there is no air "stored" only compressed after the piston starts to move.
So, a break barrel is certainly NOT a single stroke pneumatic as it has no onboard air reservoir and there is no air "stored" only compressed after the piston starts to move.
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Yes, I agree. I do not think of my springers as pneumatics, but yet they still rely on pneumatic principles. The pellet is moved by compressed air down the barrel. A CO2 gun, by definition, if you look up the definition of pneumatic is a pneumatic gun.
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i was told this is rare ? Walther LP mod 2 . wonderful accurate SSP. got about 20 shots before the cocking arm let loose . 
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This LGR is my only SSP. Replaced the piston seal with an o-ring about six years ago.
Pics of air chamber and exhaust valve
Pics of air chamber and exhaust valve
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this 9 page and 5 year journey has mentioned many pistols and rifles, many we know very well and some so much
but in all of that, there is one that is missing and tonight a decided to check and make sure
that is of the Hammerli 450 it had a very checker past from what i remember, all had to be sent back to Europe to be fixed and after that you were on your own Hammerli just walked away
i have seen a few for sale but i would think all they are worth is for there sights at this point, but could be wrong
https://www.pilkguns.com/wp-content/uploads/2017/06/Haemmerlimlg450.pdf
but in all of that, there is one that is missing and tonight a decided to check and make sure
that is of the Hammerli 450 it had a very checker past from what i remember, all had to be sent back to Europe to be fixed and after that you were on your own Hammerli just walked away
i have seen a few for sale but i would think all they are worth is for there sights at this point, but could be wrong
https://www.pilkguns.com/wp-content/uploads/2017/06/Haemmerlimlg450.pdf
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