Quote Originally Posted by slow_runner View Post
Yes that forked sear is an interesting concept Guy.
The Hurricane that we have, hereby known as the 'Phutta', has deep axial grooves down the bore. Jeff spent a long time with the lap tool before giving it up and putting it aside for the duration.
It appears that someone has attempted to ream out pitting at the far end and succeeded in screwing up the bore.

Cheers.
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Wanted: rear sight for Milbro Diana MK4, the early slide elevation type. Or images to replicate from.
Ken --could your mate Jeff put a thin walled sleeve down the cylinder and then turn the piston down to suit? Just thinking as a lot of people sleeve the Hw's etc