Originally Posted by
Prof51mtw
I've just finished a tune on a 55T and it is running well at about 9 ftlbs (700 ft/s with Mosquitoes). Much more than that and the gun becomes quite harsh.
The breach seal for a HW95 will fit after it is has been shaved to fit the angled breech on the 55. To do this put the breech seal in BACKWARDS and pop a thin steel washer (thinner the better) over the seal so that the exposed side of the breach seal protrudes through the hole in the washer. Now shave the beach seal flush with the washer using a Stanley knife blade. Take the breach seal out and refit it the correct way round and you're all set!
Mike