i have a rws45 177 , made in 1986, is this an "original)?
did the 177 and 22 have the same powerplant?
are the barrels easily interchangable? got it in a swap,
a1 condition, could not pass it up even though i wanted
a 22 carbine.
has any one used ballistic products shot in any size?
thanks for any advice,i am a newbie,
If your gun has the cross pin thru the stock above the trigger it is the original. It has a leather piston seal. To my way of thinking this is the more desireable model. I believe mine was also made in "86" and now has a J.M. spring in it and is shooting Hobbies around 825fps. Jim does not make a new seal for this gun but in my opinion the leather one does the job very nicely. You have a very nice gun and it will shoot even better with a "tar" lube tune. Enjoy the 45
Chris
I have installed 2 new JM springs in my old 45 (1981 model) and I can't get it to do more than 625 fps with cpl's. The seal looks good and it fires well. I've used the tar and moly and leather conditioner (rws chamber oil) in the correct proportions. JM thinks the leather seal is shot but it looks like it is in good shape. Any ideas? Way too expensive to have rws service sell me a new piston. Thanks for any ideas.
Hi Don:
When I first reassembled my gun the Velocities were also low. It took at least two hundred shots before the velocity came up. When it did start to rise it did it with a vengence. I noticed that it was after the breech started to warm up the velocity came back up and stayed there. I also worked a lot of RWS chamber lube into the leather before I assembled the gun. This was done over several days. Soaked the leather until it was good and wet on the out side and the next day it would be dry so I would do it again. I'm about to go out the door so if you have any questions I will get back to you this evening.
Good luck!
Chris
The seal isn't dry (at least I didn't think so) and I soaked it about 3 hours before assembling. I may not have 200 shots through it since I changed the spring. I'll keep firing and see what developes. I have a 34 and 48 so I don't really need the extra power for the basement but I would like it to be at spec. Thanks for the feedback.
The rws 45 was born in 1978 as a answer to the hw35 and fwb124/127.
It was marketed in the uk as the original 45, on the continent as the rws 45 and in america it was imported and sold under the rws brandor asthe crosman challenger 6100 and for a whileas the beeman250.
It was the first magnum, in .22 the power is 15.2-16.5 f/lbs.
It will take a 34 coil spring and can have a P.T.F.E WASHER
fitted. JM springs dont have enough coils for this gun.
Cameron, what is a P.T.F.E washer? I have a JM spring installed so would this washer compress the spring more equalling more velocity? I'm grasping at straws as to a fix for the velocity drop mentioned in the post above.
I have an interesting story that relates to the "not enough coils" theory. I once had a model 34 in .22 cal. that I wanted to smooth out the firing cyle on. I tore the gun down and removed 4 coils off of the spring and reassemble the gun. Much to my surprise the velocity increased 25 fps. The gun was much smoother and the velocity had increased. So I decided to remove 4 more coils and reassembled the gun again. This time the guns velocity dropped to 25 fps. below the original velocity and now was incedibly smooth shooting. This tells me that the original springs in the 34-36-38-45 guns are running to many coils. I related this story to a highly regarded gun tuner who was in agreement about my findings. This also tells me that just maybe Jim Maccari might know what he is doing. A co-worker talked me into selling the gun to him and he has no intentions of reselling it.
This is just my feelings and findings and not ment to shed negative light on the thoughts of others.
Safe shooting
Chris
Hi Don P.T.F.E stands for polytetafluoroethyllene witch has the lowest coefficient of friction of any solid.
To change the washer you have remove the rivet/drill and tap for a screw to replace the rivet but it might be better to remove the piston and send it off to be done, it dont cost much.
You can send for the washers from T.R.ROBB web site
www.trobb.f9.co.uk have a look but I dont like his springs but they might work for some, I think venom F1 are the best and John Knibbs titen xs next I know JM springs are great but he himself says they is for smoothness not very high power with the F1 you get both ask any one who has used them.
Hi Chris I to have a 38 and the most coils it will take is about 32 dose that mean that you ended up with 24 coils?
When I put a 25 coil spring in my one I only got less than 10 ft/lb what was your one doing?
Cameron
Hi Cameron:
This particular project took place at least 4 years ago so getting down to exact numbers is going to be difficult. I didn't count the number of coils on the spring before I started. I just know that I removed four coils the first time and 4 more the second time. I used open gear lube on the spring and had excellent results. On the 45 I used JM's tar and I may go back to the open gear lube as the 45 doesn't seem to be as smooth as the 34. This also may increase the velocity some as the gear lube has a lower viscosity. I might add that the 34 was a carbine in .22 cal. and after the work it was shooting right at 12ft.lbs. I special ordered the gun and still kick myself for selling it. But what are friends for I guess.
Enjoy your comments!
Chris