But maybe I put it on a wrong forum:
Have benn produces any hangun in 22 hornet?
More over have any revolver been produced in this caliber?

Yes there are several, T/C Contender, Encore, Taurus Raging Hornet Revolver, the BFR revolver and the Anschutz Bolt action pistols.

Those are the factory ones I know of. Several Gunsmiths produce a few custom ones as well, Hamilton Bowen, I think Gary Reeder might, then the single shot custom shops as well, SSK Ind, E. Arthur Brown, Fox Ridge Outfitters, and again Gary Reeder.

There are many more but those are the ones I came up with off the top of my head.

I had a Contender. 22 Hornet barrel, it was very accurate and fun to shoot.

Some sights:
http://www.gunsamerica.com/976957297/Guns/Pistols/Magnu...22_Hornet_7_5_SS.htm

http://www.gunsamerica.com/976984139/Guns/Pistols/Colt-...ornet_Conversion.htm

http://www.gunsamerica.com/976966586/Guns/Pistols/Magnu...ls/BFR_22_Hornet.htm

Thank you montycalhoun, unfortunately gunsamerica.com does not accept international registrations.

OOPS, didnt know. Sorry.

They are out there.

How about looking on Gunbroker.com??

http://www.gunbroker.com/Auction/Categories.asp

Don't worry or apologize, the only problem is that it is impossible top enlarge the photos.
I'm not looking one to import in Italy. I'll buy it only if I'll find it in Italy. But I think that it is impossible, if that revolver are rare in the States, in Eu they are probably unknown.
Thank you however for you kindness.