The perfect sub 12Lb hunting calibre IMHO and I used to use one for a couple of years for HFT with a modicum of success about 11/12 years ago. Times move on though, very few had dedicated target guns/scopes in them days.
Daystate Mk4 iS ST (Huggett shroud & Mod .20) Lightstream 4.5-14x44 FFP
Daystate Grand Panther (Grand Prix stock, .177) Nikko Stirling Diamond 10-50x60
Daystate Panther (Gary Cane custom stock, .177) Sightron SIII 10-50x60