Question On Leshiy Tuning

I might be getting a new permission for shooting pigeons soon. I thought using my Leshiy for the job as it is light weight and maneuverable. Some of the shooting will be inside so I need to turn the power down. My Leshiy has the standard after market Huma regulator installed, not the 12 ft lb. version. How low can I expect to turn down the power and get consistent performance and about what bar setting for the regulator. Thanks Bill
 
You can change reg down to 90-100 bar and set hst to ~580fps - you will achieve just below 12fpe on jsb jumbo 15,89gr. There should be over 55 equal shots.

did it with short barrel in .22

Thanks I did not give too much info about my set-up. I have the .22 cal. 350 mm barrel. I wanted the fpe low enough so that if I'm inside a barn it won't poke an hole in any tin roof etc.

Funny that my Huma adjustment tape does not match the actual reg. bar setting. I have ordered the reg. tester from Huma so I can get everything set up precisely and if the reg breaks in any more. Thanks Bill