Daystate Huntsman revere .177 18fpe reg. pressure ?

ok
i think i need to adjust my hammer spring now …
Use a chronograph. Turn the hammerspring counterclockwise. Take quaterturns and shoot a few shots. Like I wrote it can up to 23 ft/ibs but there is airwaist. I have tuned down to 22 ft/ibs shooting 20-22grain ZAN slugs. It just loves them. If I stuff a pellet in with this setting it does only 20 ft/ibs. If you shoot pellets only you might can gain air efficiency by set the power to only 20 ft/bs. From factory setting at 18 ft/ibs I get aprox 80 shots. I will turn my Revere back to factory setting and use it for pellets only. The Black wolf deals with slugs.