Funnily I recently purchased a couple of low powered Dianas as an alternative to my HW30's. I have a 24d and a 27. Both very capable low powered plinkers, doing about 6 ft/lb (both are .22). From what I've seen of the 240's (check out Pyramid air blogs) they would appear to be German (or maybe Bulgarian) made. Both mine were over 30 years old and neither had eaten themselves with the Galling issues the 30's have (I also own two 30's and have worked on several more to balance the argument).