UPDATE .. tho no pictures yet.
Got a wild hair up my arse today while thinking how much i dislike .177 when weighted against .20 for the FT ( Field Target game )
Having an LW 16mm .20 conventional rifled / choked barrel off the JSAR not being used ... thought, Huh that could allow for making a killer caliber conversion on this TAIPAN FT Custom
So ... machined the barrel O.D. behind the forward Scope tower / clamp to @ .590" diameter ( 15mm ), did the threading to fit breech, made a custom one piece thimble / transfer spacer having NO o-ring within barrel O.D with probe yet fabricated that would carry the breech o-ring. Fabricated the required .20 cal Probe assembly, new collar etc ... That done with a new complete probe assembly machined it to carry the breach sealing o-ring. ( using s single shot tray BTW ) so no mag snagging issue to be dealt with.
Spending over 4 hours in the shop finished it up after dinner tonight.
Due to the barrel being 16mm ahead of forward scope clamp the OEM Shroud assembly would not fit on. ( Wanting to keep the OEM parts unmodified so it could go back to .177 ) Screwed on one of my LDC's being barrel was previously threaded 1/2-20. Still crazy quiet with only an LDC can hanging off the muzzle.
SO NOW WE HAVE A .20 caliber TAIPAN Veteran bull pup. talked about it for years , now a reality !!!!