Why is the HW95 so bouncy??

[maximus]

Just fitted this new short stroke red aussie piston seal this afternoon.
The hw95 piston is machined down to 195g and runs a vortek spring and guides.Lubed up with stp/graphite powder mix.
Added a slim metal power washer ,rebuilt and test fired.
With aafd 4.52 the chrono said 10.52 fpe 749 av ,low 747-752 high dv5 sv2.Fine,will increase slightly as the new seal beds in.
Scope refitted and a few shots fired,a dull thud with no loss of sight picture and hardly any movement,very promising.[IMG]104-8782[/IMG]

Hi, sounds great, what was the weight of the piston prior to machining?

Also, how much pre-load with the vortek kit?

Thanks Max