In my particular instance, the Viton is holding up much better so far.It's been over a year without a failure and I shoot this particular gun several times a week. I'll shoot the Viton until they fail however that may take a long time since my purchase last month of an Air Arms S500. Much...
I saw in another forum that the UK just passed some silly law against passing down disabled firearms to relatives. How absurd. It got me to thinking how fortunate we are here in the USA.. What are the AIRGUN laws in your particular state or country ?
Im finding 120 bar is working just fine. 45 good shots with JSB 10.4s. Havent gotten to the chronograph yet, more concerned with accuracy and reliability at the moment.
Have two FX guns for over a year now, one three years, havent had a seconds trouble out of either gun. I shoot a lot, thousands of pellets through each gun, not a problem out of either. High quality build and accuracy is amazing.