Quote Originally Posted by T 20 View Post
Hi John.

Your old HW55 is waiting in the wings at present, just as she arrived and I may just keep her as Herman intended.
Having said that I may have a little play with her by fitting the 69.5mm stroke piston that I made for my bitsa HW50 to compare the firing cycles.



All the best Mick

Hi Mick

The 55 was intended in a round about sort of way for my daughter but I won't tell her I sold it if you don't

I too had thought's of fitting a Hw50 piston to the 55 but didn't want to over stress an old classic and as luck had it, I managed to cobble together a Mk1 Hw50 with the help of a very good chap on this forum, so one of the Hw's had to go.

I've had both .177 & .22 Mk1 50's over 11 fpe with the standard piston stroke, hence why I am so keen to see how yours fairs with an extended piston stroke.

All the best

John