RWS 25 Freebie.

[Chinc]

My brother recently gave me an older Hy-Score Model 801 .22 ag that was made in Germany and, as I found out, is really an RWS 25. It's in very good shape and shoots well although a bit on the weak side. It looked pretty dry inside so I took it apart to do a lube tune with some JM stuff and found the leather seal in good shape so, after the lube, hone and deburing, I put it back together and noticed it does shoot and cock noticeably smoother. I like the gun and the price was right so I'm wondering if there are any parts available like a spring to put some original oomph back into this. The spring has 30 coils that measure .107 diameter and is 8.5 inches long relaxed if this helps any. Thanks.

Rick

[Mark 611]

Look around on JM's site and you might find a spring that matches, if not EM him he may have something that works but you may have to have a spring guide made for it.

[Ken T]

JG airgun parts has a piston spring listed on their website.

[RedFeather]

Add a couple small drops of silicone oil (hobby shops sell it for R/C car shocks - you'll want the pure stuff).  Let sit butt down for a day or two to rejuvenate the seal.  These did not have a lot of power, especially in .22 .

[s10gto]

Here ya go. Quick shipping and your creditcard will do the exchanging.   Dustin

http://www.gunspares.co.uk/shopdisplayproducts.asp?id=24372&cat=25

[Mark 611]

I'd find away to adapt a synthetic piston seal to that rifle and lose the leather one! JMO

[s10gto]

It can be done. I did a Diana 45. The leather seal just had a washer over the seal and a stub shaft peened over. The stub holds the piston together so you can't drill and tap. I found a flush mount allen screw with the correct taper then spun it up in the lathe. I machined it so the taper is just below the seal. Then center drilled it and welded it to the stub on piston. Installed a JM Apex seal , lubes and she is shooting better then new. 

Dustin

 

[Chinc]

It sounds like this was never meant to be much of a powerhouse and it looks like the best way to go is with a synthetic seal and new spring. I'll let you know what I end up with. Thanks everyone.

Rick

[bart the fart]

dustin looking good! nice handy work there...bart

[Mark 611]

yes Dustin is quite crafty!

[s10gto]

Thanks   

[RedFeather]

Oil the seal, get a couple of aluminum soda cans, a tin of pellets and call me in the morning about replacing the seal/spring.  Those are nice, sedate plinkers.  Sort of the other end of the spectrum from the 350, etc.  Try it and see if it isn't the adult equivalent of a Daisy 25.  Does yours have an adjustable trigger?  If so, she's worth more than a regular 25 as it might be a 25D.

[Chinc]

This doesn't have an adjustable trigger...just a plain single pin and return spring. The barrel is rifled and, yes, I would consider it a sedate shooting ag that is quite accurate at 10m into a duct seal trap. The pellets don't stick in far at all and some fall out after a bit of shooting.

Rick

[northern lights]

I have two of them a dasiy 250 in 22cal an a daina 25 in 177 cal The 22cal will 460 fps with a 14.3 pellets an the 177 cal will do 580-600 depending on pellet. I like the dasiy better little gun hits hard . very accurate out 25 yd,s the diana 25 isn,t as accurate but still a good shooter. Very nice find. I would fix it up an enjoy it.