Worlds Most Powerful SSP Air Rifle

[RobertMcC]

Made in Nova Scotia. SSP 22 cal shooting 700 FPS. Its very interesting airgun and wouldn't mind seeing it on the market.

Watch the video.

[Wayne52]

That is really a neat design for sure, great video he did too!!!

[Rob M]

there were several 30 yrs ago pushing 12 fpe like the Bowkett.. What I noticed from this video is he has almost no mechanical advantage cocking the gun.. weird

[CraigH]

Interesting design - look forward to seeing more.

[Ultramarine]

Really fascinating. A pumper making a comeback towards the future... but inspired by the past with it's crossbow shape. It's a prototype so one shouldn't mind its very mechanical style, with such nice performances.
Anyway, thanks for the info. The Webley Paradigm, FX Indy, Quigley or Millenium won't feel alone.

[RobertMcC]

Talking to the designer. Which I'm no way affiliated with. Just helping a fellow bluenoser out.

He saying that it might be in around 600 CAD when finished for the market.

[JMJ in NC]

What I noticed from this video is he has almost no mechanical advantage cocking the gun.. weird

His mechanical advantage is roughly 2:1, x2 levers to push down the piston.

JMJ

[A.K.A. Tommy Boy]

Say Robert, this looks very interesting to Me.  Keep us posted on the progress of this gun if you can.  Tell the designer not to sell out to Crosman , Gammo ect. because they will bury this idea.  They have too much money invested in gas piston break barrels to let this come to market.         Good job and Best Regards   -   Tom

[Rob M]

What I noticed from this video is he has almost no mechanical advantage cocking the gun.. weird

His mechanical advantage is roughly 2:1, x2 levers to push down the piston.

JMJ

yes.. For comparison your average pumper has a minimal of 10:1

[RobertMcC]

Say Robert, this looks very interesting to Me.  Keep us posted on the progress of this gun if you can.  Tell the designer not to sell out to Crosman , Gammo ect. because they will bury this idea.  They have too much money invested in gas piston break barrels to let this come to market.         Good job and Best Regards   -   Tom

I will. I'll try and get him to come over here.

[dcorvino]

Very interesting rifle.
Look forward to seeing the final product
They did a great job.
Thank you for posting about it

Dave

[T-Higgs]

Plus 1 for interesting. I hope it goes somewhere.
Thanks for posting.

Higgs

[Back_Roads]

 This one caught my eye  before I went to the darker side 
http://www.gatewaytoairguns.org/GTA/index.php?topic=29394.0

[JMJ in NC]

What I noticed from this video is he has almost no mechanical advantage cocking the gun.. weird

His mechanical advantage is roughly 2:1, x2 levers to push down the piston.

JMJ

yes.. For comparison your average pumper has a minimal of 10:1

My 1377-based pumpers (normal and medium stroke) are 3.5:1, worst case with pump lever at 90 degrees.  Avanti 853 (SSP) is 4:1. How are you calculating mechanical advantage?

Fwiw, it's a great design, allowing use of both hands to execute the compression stroke. The low mechanical advantage allows for the long stroke he needs. I was wrong, in that the mechanical advantage appears closer to 1.5:1, but essentially with 2 levers acting in parallel, so 3:1.

JMJ

[freedom700]

I am not sure how the mechanical advantage occurs. I can hold the pump arms at the fulcrum, and still pump it with ease. Seems un natural in a way. All I know it works. In fact, it works so well that our steel tube is going to be 1 1/8" ID which will give us 16 CI of air instead of 12.5 CI. So we should get 20 ft lb,s easy. However we don't really know till we try. Mostly, its a blast discovering what can be accomplished with compressed air. Frustrating at times, but soooooo pleasing when your expectations are surpassed. Originally the goal was to get 12 ft lb,s energy in .22 cal.

[JMJ in NC]

It's a great design, Joe. Nicely executed.

JMJ

[Makincheez]

Wow Joe, that's a great idea and I look forward to seeing it hit the market. Looks perfect for just sittin' and shootin'. For me personally I would prefer a slightly less tactical look but I can easily get past that. I do realize it's kind of a frankenstein working prototype at this point. As a proof of concept though it certainly does the job. Congrats on getting this together and the best of luck to you!

[Rob M]

What I noticed from this video is he has almost no mechanical advantage cocking the gun.. weird

His mechanical advantage is roughly 2:1, x2 levers to push down the piston.

JMJ

yes.. For comparison your average pumper has a minimal of 10:1

My 1377-based pumpers (normal and medium stroke) are 3.5:1, worst case with pump lever at 90 degrees.  Avanti 853 (SSP) is 4:1. How are you calculating mechanical advantage?

Fwiw, it's a great design, allowing use of both hands to execute the compression stroke. The low mechanical advantage allows for the long stroke he needs. I was wrong, in that the mechanical advantage appears closer to 1.5:1, but essentially with 2 levers acting in parallel, so 3:1.

JMJ

the difference is the toggle lever, or linkage from a pump arm to a piston arm.. Having 2 or 7 levers doesnt change the geometry between his pump lever, toggle , and piston arm.. The force required to move X amount of air remains the same.. Yes , at 90 Degrees there is very little M.e with a normal pumper, but coincidentally its not needed at 90 degrees where theres almost no air being compressed. As the pump arm reaches 45 degrees in a conventional pumper like your 1377 , the ME is already 7to 1 or greater.. But the time the pressure is peaked ( near 15 degrees pump arm angle ) the mechanical advantage has passed 10:1
An easy way to reverse the math on the process for proof is simple..
If a 1377 on the final stroke is pushing a known number , like 1000 psi , we can base all numbers on the diamter of the piston .. ( .620)
So r X r X pi X 1000 psi =301 lbs of rear force to move the piston to the valve face.
Even were the M.e as low as 10:1 , you would need to expend 30 lbs cocking effort on that final stroke to reach the 1000 psi valve pressure ( these numbers seem fairly close

[Rob M]

the great news is pumpers are truly in their infancy.. We dont use any modern technology to translate the mechanical force to compressing  air.,. ( eccentric cams , ball bearings, any sort of gear reduction tranny, hydraulic fluid -just to name a few )And the biggest of all is multi stage piston

[45Bravo]

Very cool,just tell me where to send my cash...