Quote Originally Posted by maximus View Post
Nice post. I did mine a few years ago, it has a 37,5mm extension with an o ring as the seal. Mine is 177 and still made power like no other gun I've had before (including the HW80).
Mine has a short stiff spring in it now, the piston was lightened bearings added and all sorts. Took a lot of stripping and re-assembling to get it where it is now. Finding the right spring is quite a lottery in my experience. Here's a pic.

Regards

Max

http://i953.photobucket.com/albums/a...diana52003.jpg
Thats a mighty fine looking gun. Its good to see one "dressed up".
As has been found out above the Diana 52 was the answer to HW80 in the power crazed yesteryear..
But equally they can.be throttled back and customised to be a very practical and aesthetically pleasing shooting iron.
Dave