Just rebuilt one of these this week, it had been abused a bit by the previous owner. Was amazed at the huge rifle size spring that it can accommodate. One thing I would do if I owned one is to replace the heavy "mainspring bearing" with a Delrin one. If you do not make your own piston seals they are expensive to service as you are talking of over £30 for seal and spring which is a third of gun value. Had problem getting the cap threads to line up using the sash cramp with the heavy spring preload, but eventually prevailed. Found it harder to re-assemble than the Model 6 ! Any tips on lining up the back cap threads ?
Baz
BE AN INDEPENDENT THINKER, DON'T FOLLOW THE CROWD