Quote Originally Posted by Parascience View Post
Good morning. Yesterday I collected a forlorn Mk.1 335 (.22) from my RFD. Apparently, it had been standing quietly at the back of a wardrobe for the past 20 years. Condition is really good and both F&R sights are in place. Apart from the leather piston seal needing a drink of oil and the spring relubing, the rest of the rifle just needed a wipe down and the breech seal changing. Long story short... the rifle currently has a generic BSA seal fitted and is chrono'ing at around 10.5ft/lbs. If possible, I'd like to put the correct breech seal in but does anyone have a suggestion regarding the missing spacer that sits beneath the actual seal? How do other 335 owners deal with the problem? Hopefully someone here will have some wise words, Thank you in advance.
I have a first series 335 which came with a really brittle breech seal. I reckon the old one was about 4mm deep whereas the new ones which came from B&K were about 2.46mm each. So I rubbed down both faces of one (to put in first), and the inner face of the other to go on top, and got them down to about 4.26mm in total, which fitted ok and (after servicing the inside) gave me about 10.5 ft lbs which I was pretty happy with.