I wasn't too distressed when I sold my Osprey Supertarget, but I have kept my Mark 3 Supertarget for many years afterwards as it just felt like it was an altogether better built Webley target rifle that worked better too!
My HW55T is a far better recoiling rifle for target use IMHO (as are my .177 HW35's that have been fitted with WH diopters) which I found very disappointing at the time as I really wanted my Osprey Supertarget to perform well enough to be competitive when used against them, but it was not good enough and so after working with it for a couple of years I reluctantly gave up and sold it.
I am not a Webley basher (as IJ will confirm), but I was really disappointed with my Osprey Supertarget and would not want to own another one!