My Version of the Millenium Pumper

[rsterne]

The only thing that SSPs and Springers have in common is that they both only take one stroke.... Springers compress and heat the air on firing, SSPs compress it into a valve and then it expands and cools on firing.... Thermodynamically, and efficiency-wise, about as far apart as you can get.... SSPs are great at delivering a consistent velocity/FPE, without the recoil of Springers.... which is why they dominated 10M competition between the days of Springers and PCPs....

There are a lot of inexpensive SSPs available, to fill the low-power, no-recoil market, and being low power, they are easy to cock.... What I should have said is that higher powered SSPs are a niche market.... and I'll add that is just my opinion, nothing more....

Bob

[LegionAir]

I was not aware of those SSPs existing. Do you guys think a high power SSP, with a lothar Walther barrel, would keep up with the rifles that are used today for FT?

[Rob M]

I was not aware of those SSPs existing. Do you guys think a high power SSP, with a lothar Walther barrel, would keep up with the rifles that are used today for FT?

unless the rules were 12fpe like europe.. in that case yes.. very much so

[rsterne]

I agree, at 12 FPE an SSP should be doable in .22 cal, not so sure about .177 cal.... I don't think you could build an SSP to deliver 20 FPE in .177 cal, however.... at least not one you would want to cock 60 times during an FT event....

The SSPs that were used in Olympic competition were 500-600 fps with maybe an 8.4 gr. pellet in .177 cal.... so 8 FPE or less.... IIRC....

Bob

[LegionAir]

Man, I wish my shooting skills were up to par like some of you guys. I would buy that high power SSP from the YouTube guy and shoot it at the FT competitions myself. Sometimes people just need a demonstration of what a product can do before they open up their wallets

[LegionAir]

Rsterne, have you built any SSPs?

[Rob M]

Man, I wish my shooting skills were up to par like some of you guys. I would buy that high power SSP from the YouTube guy and shoot it at the FT competitions myself. Sometimes people just need a demonstration of what a product can do before they open up their wallets

i actually dont believe the youtube guys numbers  unless he has some top secret contraption inside the gun that engineers never thought of... I do believe Phil Riggs 13.5 fpe build.

[LegionAir]

i actually dont believe the youtube guys numbers  unless he has some top secret contraption inside the gun that engineers never thought of... I do believe Phil Riggs 13.5 fpe build.

If he is lying it would be the dumbest thing a person could do that’s trying to sell their idea to a manufacturer. They would quickly realize that he is a phony and show him the exit. I could understand some guys on YouTube who make a video of them shooting an egg from 381 yards offhand, but I think this guy is the real deal. I bet many people wouldn’t have thought Rsterne could reach such numbers with his pumpers

[rsterne]

Nope, never owned one, except a Daisy 953.... and of course a Red-Rider....

Bob

[Rob M]

If he is lying it would be the dumbest thing a person could do that’s trying to sell their idea to a manufacturer. They would quickly realize that he is a phony and show him the exit. I could understand some guys on YouTube who make a video of them shooting an egg from 381 yards offhand, but I think this guy is the real deal. I bet many people wouldn’t have thought Rsterne could reach such numbers with his pumpers


hes just using far less swept volume ( air ) than other designs that are making 60% less power.. My suspicion is based on plain math.. Bobs build was self explanatory and made sense before he built it

[Back_Roads]

 Seems the big air rifle manufacturers rather develop their own ideas and not be handed the golden egg on a platter 

[YEMX]

Seems the big air rifle manufacturers rather develop their own ideas and not be handed the golden egg on a platter 

Isn't this always the case though?  Look at how much stuff is talked about and developed here.  That's just THIS airgun forum.  The majority of what we talk about is modifying existing guns.  We all add our input about various guns.  Changes are made, guns are modified and tested.  Yet manufacturers fail to reach out.  Even when they do, they nearly always miss the mark with the product(s) they bring out.  Guns that could have been made cheaper and use existing parts, guns that use wonky barrel specs...  The grunt work is done for them, yet they miss the mark time and again.  I just don't understand it. 

But I digress...  and apologize for the rant.

I do plan on making MY version of the Millennium Pumper...  But mine will have certain design elements of a Crosman 1400 and some parts from a QB.  I can't wait to build it!!

[LegionAir]

hes just using far less swept volume ( air ) than other designs that are making 60% less power.. My suspicion is based on plain math.. Bobs build was self explanatory and made sense before he built it

Assuming he’s using the same SSP technology as the other designs, that 60% less sweep would in fact make him full of it

Pardon the newb question: Do SSPs pump air on the upstroke as well as the down stroke?

[Rob M]

hes just using far less swept volume ( air ) than other designs that are making 60% less power.. My suspicion is based on plain math.. Bobs build was self explanatory and made sense before he built it

Assuming he’s using the same SSP technology as the other designs, that 60% less sweep would in fact make him full of it

Pardon the newb question: Do SSPs pump air on the upstroke as well as the down stroke?

generally no.. but thats a good question since mutistage pumps like the FX indy do pump on both strokes.( thats the only one i can think of )
keep in mind forum members have done a lot of thinking over the last 19 years.. On the yellow we had a Nasa engineer as a member.. I still speak to him on occassion.. Weve also had hundreds of brilliant machinists who could literally make anything they dreamed of.. And yet this random guy on youtube achieved far better results with less effort than 19 yrs of think tanks.

[billzweig]

Yep, I'm out of date, and I apologize.... Like you say, if the market was there, both those and the Millenium Pumper and/or Carbine would be available for purchase....

Bob

Very nice work. Did you actually try and market/manufacture this one or other of your projects?

[rsterne]

I have no interest in going back to work at 71 yo.... I did the development, Crosman is aware of it, and decided not to use it.... Their loss, IMO....

Bob

[billzweig]

I have no interest in going back to work at 71 yo.... I did the development, Crosman is aware of it, and decided not to use it.... Their loss, IMO....

Bob

I am sorry to see you giving up. I am about the same age and in fact working on a new ideas just because I am retiring from "real" work...
If something is developed it does not mean that there is not room for further innovations. Every perfect design can be made better.

[rsterne]

I have no interest in "marketing/manufacturing" one of my project guns.... The best way to make a small fortune in airguns is to start with a large one.... 

I'll stick with what I do best.... developing ideas and trying to improve airgunning in general.... I will leave it to others to go broke trying to make and sell them.... I've seen it too many times for it to hold any interest for me.... 

Bob

[billzweig]

I have no interest in "marketing/manufacturing" one of my project guns.... The best way to make a small fortune in airguns is to start with a large one.... 

I'll stick with what I do best.... developing ideas and trying to improve airgunning in general.... I will leave it to others to go broke trying to make and sell them.... I've seen it too many times for it to hold any interest for me.... 

Bob

I am glad to hear that you are not giving up the developments; you have great ideas and a lot of experience. As for the business venture, I do (mostly) share your sentiments.