I did a complete rebuild (yes, "I" did it ;)) a couple of months ago.
I did not have the correct o-ring for the valve poppet (I bought one at Lowe's that was close) but the one I used is close.
I still have a minor leak (not enough to affect a match if I ever shoot an FT match) and I think it is coming from the valve.
Two Marauders, a TX200, a D52, a R1 and a HW35.
It is a shame the most accurate rifle I have is not a rifle at all:
It is the 1720T
It is tuned to just below 12fpe (20-25 shots) and within that limitation will shoot right along with the rest-even with me behind the trigger. :P
Shoot safe and have a great New Year.
Sounds like you had a good day of shooting. The LW barreled Crosman are just a pleasure to shoot. :-*
Keeps a guy on his toes when he can't blame the barrel for an errant shot. ;)