Quote Originally Posted by Hsing-ee View Post
Hmm. Are the spherical projectiles a really tight fit in the bore? In which case you may be getting some diesel-assist as the pressure builds up so much before they move that the oil vapour from your rebuilding is detonating.

How accurate is that little Russkie? It seems very keenly priced.
It is accurate, the mechanism is very basic but strangely enough the trigger is pretty good. The rear sight has a bit of slop in it, but that can be remedied. The cocking action on a new one sounds like an old bed spring (it also includes an ABT ratchet), but the pistol shoots well with decent velocity.

Pretty sure Ian.KD did a review on bbs a while back (including strip and re-lube), but often is the case I cannot find that now

They were available from Europe at a ridiculous knock down price a year or so ago.