Quote Originally Posted by sd5782 View Post
I am not really an expert on lots of the modern Dianas here in the USA. It seems though that we don't see some of the variations that are available overseas. Posts often reference catalog items that show European guns that we can't get. Sometimes a distributor, or someone with connections to the company gets some imported. It is all about dollars I guess, so we didn't get the 280 as all Americans seem to want is stuff that is powerful. Oh well.

As to your 440TH, I looked, and it does indeed seem to be based on the 340L, and surely the 470 must be based on the 460 as is that 98K that is out now. Quite curious that you have the long stroke 470 at low power and the 440 tuned up. I bet that you would like them reversed. One fun thing about Diana though is that they are not afraid to try different configurations on the same platform like one might see when buying a car. This is a great marketing move as it keeps discussions and interest elevated. This also keeps us airgun addicted crazies on the lookout for ones we don't have. I don't care for that matte finish either. I have a 31Professional in 22 which has the large heavy muzzle weight on the carbine length barrel with that finish.

Also curious is that Diana here in the US have traditionally been priced perhaps 25% less than an HW. For even money like I read is what it is in England, I would probably buy an HW most every time. Too bad that the pricing there wasn't better, as it seems like the market would be decent.
I’m pretty sure the 430 and 440 use the same action.

The 460 and 470 use a longer one.

Diana’s stated velocity figures for the US-spec 430/440 are 870 FPS in .177”, 670 in .22”. So about 11-14 ft-lbs, similar to the 34 (etc) break-barrels.

For the 470, the figures are 1120 and 890. So 19-25 ft-lbs.

They list the 460 at 1200 and 1000fps. So up to 31 ft-lbs. However, tests I’ve seen by actual shooters usually return max energy figures around 23-25 ft-lbs.