I have one of these airguns and it is not very difficult to strip down and service.
Parts might be the problem though.
The company that made it closed a few years ago I heard. About 1300 were made of the RH93 series.
Mine is a RH93 CS800, that is the one with a walnut thumb hole stock, 22 cal Lothar Walther barrel as from the factory. I also made up a short 177 barrel that came off an HW airgun and it shoots around 630fps in the former and about 790 fps in the latter calibre with JSB pellets.
It was designed in and for UK use, hence the 12ftlb power level.
I have a few photos of mine in pieces, but never had any factory schematics.
They are rare airguns and one needs a spring compressor and just a few basic tools to take it apart.
The 2 pistons have an O ring and a parachute type seal.
The metallic parts for it are virtually unobtainable and have to be fabricated and carefully matched for weight(if moving) with the originals.
Same goes for the 2 main springs which are not identical in dimensions and weight.
Everything has to go in the right order for the recoilless characteristic to be preserved.
It is built like a tank and I have never had to change anything till now except for the barrel to cylinder seal which is easily damaged when stripping it down or removing the barrel.
It is also quite an unusual seal shape that can not be bought off the shelf like common O rings, so be careful here.
How does it shoot like? Is a strip down necessary?
If a pellet placed on the breech does not move when the gun is shot and the power is up to scratch, leave well alone and enjoy it.
David
Gustoo is the seller. He seems to be a bit high but his stock is good. Calls if the Poor Man's Whiscombe, although what he is asking isn't exactly cheap.
They do not have much in common apart from being British recoiless spring airguns.
One is hand built and the other was produced in a factory albeit in a limited run.
The workmanship on the Whiscombe is impeccable and the component parts are very well machined and fitted, hence the long wait for one to be produced and the inevitable high price.
The Park shows signs of series production with an average trigger and finish, however it is solidly made and metal to metal fit is good.
Both have their pluses and minuses and appeal to different people for reasons that at times are not related to shooting airguns per se, but more to do with owning something that is rare and mechanically different.
I think that it is wrong to label the Park as a poor man's Whiscombe because internally they are so mechanically different.
If anything its recoiless operation which is on par with the Whiscombe's, is a feather in the cap of its designer who came up with a working recoiless mechanical system using a chain (rather than racks and pinions) that could be produced in a factory at a fraction of the Whiscombe's price.
I have yet to come across one instance where the recoiless operation of the Park is not equal to the Whiscombe's.
Unfortunately the Park rifle made its debut in the early 90's when the PCP was THE airgun to be seen with and the Park never took off because it was still considered a springer that cost as much as a good PCP.
I bought a Park and I still have no desire for a PCP....
David
RF, I know you never said its a poor man's Whiscombe.
What gets to me is that the Park rifle is more than able to sell itself on its own merits without having to borrow the Whiscombe credentials.
Any airgun buff worth his salt would immediately tell they are worlds apart yet both have particular outstanding merits.
As for the 1200 dollar price for a mint condition example, the only thing that justifies that tag IMO is the fact that they are not available any more and they have a unique action.
Otherwise if someone wants it that bad, let him have it by all means.
People pay a lot more for collectible stamps and postcards!!
I paid a lot less for mine a few years ago.
IIRC they were about 350 Stirling when new in the early 90's.I might have an old airgun mag with the adverts and will confirm it later.
It is also true that my example is so recoiless that a 177 pellet stood on its skirt on top of the scope turret, stays put.
I might have written that post on another UK forum I also post on occasionally.
I would not sell mine because its irreplaceable to me.
David.
The Park RH93 With a walnut sporter stock was worth 350 Stirling in 1996.
The thumbhole version was a bit more than that but I have no exact figures for that.