Interestingly my efforts to match the Gamo Center were realised with an LP53 I loaned at my club last night.
It really demands repeatable holding and general good technique but matched the Center when using RWS10 last night. Fabulous trigger control, difficult recoil but mastered it after around 100 shots. 53 is running on a nicely run in leather washer at 405fps high.
Did not find the HW70 so clever in my hands. Convinced I would but trigger control trickier. Cannot decide if its down to grip and balance (effecting trigger control) or trigger per say here.
In final conclusion I think its a combination of grip type (53 and Centre being similar) affording good trigger control on decent triggers. Sight pictures comparable. Velocity comparable.
Miserable effort with a Turkish Tempest (as control)