I got her all built up yesterday.
I'd previously removed 30mm from the end of the spring as it was kinked at the end and there seemed to be an awful lot of preload as standard. It was previously doing 10.8 ft.lbs, which is much more than I guessed it might do. Shortening the spring would facilitate easier fitting, reduce power and cocking effort.
I'd asked Mick if he could supply some thrust / preload washers with the new top hat and altered HW synthetic guide. I used three of these, one at each end of the spring and one ahead of the top hat.
New piston seal fitted too. Quite a snug fit.
Result? Lovely, smooth shooting. Even easier cocking. Chrono checked after about 20 shots - a nudge under 9ft.lbs with Hobby and 8.6 with Suoerdome. Very consistent - sub 5fps variation with Hobby and 1.5fps with Suoerdome. I expect the power will rise slightly as the seal runs in.
I'd have loved to keep it on opens but the cheekpiece is too high for me for opens (and my eyes are struggling with opens these days, too). So I'll fit a 4x32 atop. Nice and accurate at garden range with the opens, though.
Job done. Thank you once again, Mick.![]()