You would think that if a single pump ssp pistol can produce 580 fps that someone one would make a single pump rifle that would produce 780 to 900 fps even if it took 2 pumps . Who ever comes out with that gun is going to be rich . Even if it was only 780 fps it would sale like crazy . As far as I know the izh46m is the highest fps of any ssp ever made in a pistol . This rifle would have filled the bill but it was stopped for some reason . How stupid was that ? Something happened that it was stopped so fast . The cocking looked like the izh so maybe it was a patent problem . But someone need to make this gun .
I know the 532 rifle was made for 10meters but I wonder if it could have made a gun that would at least be a 12 fpe gun for field target use .
Quote from: rws45user on January 14, 2021, 09:03:06 PMI know the 532 rifle was made for 10meters but I wonder if it could have made a gun that would at least be a 12 fpe gun for field target use .Right. that would be nice, eh?HEY, is that my Girlfriend in your avatar?
rws45user,I think cheap PCPs killed all the expensive 12 FPE SSP rifles. I was working on a design for one, when advised by an industry rep not to share that on open forum. That it should be developed and sold to an airgun manufacturer. Covid-19 interfered with showing hardware to a particular manufacturer by the rep.Apart from that particular design, I am working on a concept that looks and cocks like a break-barrel springer, but shoots like a SSP. Rather than trying to push down the coking lever, the barrel would be pulled down and back, with the same very natural feeling ergonomics as a common break-barrel springer. The rest of the mechanism cannot be described without giving it away. My design may depart from what the target manufacturer is willing to build. Their rep also wants 12 FPE from a peak cocking force of 22 lb. I am trying to make that work. My personal goals are 12 FPE from a single stroke, at a maximum of 30 lb cocking force. Like a detuned HW95. I started by stretching the MP46 pump mechanism. The designs I gave the rep looks nothing like that. My break barrel design is even simpler. I am looking for an vibration free HW30 or HW50 like SSP that produces 10 to 12 FPE from one pump stroke. More from more strokes...My biggest problem is that paying customers keep interrupting me with design work. Then, for fun, I do free designs, or try to find or generate useful info on this forum, to help fellow enthusiasts. I want to get back to my SSP rifle concept to explore the next design approach. This after meeting and running along a wall like a rat for, a few months, trying to find the holy grail...
have you thought about using xometry or protolabs to to get some proto parts made ?
Quote from: Rob M on January 15, 2021, 09:37:03 AMhave you thought about using xometry or protolabs to to get some proto parts made ?I have used both on other projects. They are fast, but very expensive. Even their CNC machining is not very accurate. You need to finish cut important dimensions yourself. So, if you want to make a compression cylinder, forget about them creating a round cylindrical ID, of the right diameter and internal finish. You are better off doing it yourself.I would be careful what I let them make. They have language about not making certain parts, and probably have someone on the lookout for anything resembling such.
Hi All, I don't think you need to stress over the compression chamber. I used Plymouth brand chromoly tubing, it has a very smooth finish on the inside.