Any of the well known tuners will sort that right out my man. To be honest, the vintage beeeeza’s often come out a dream after a fettle. Said it once and I’ll say it again, one of the top three rifles, PCP or spring I’ve shot was a bowkett printed hornet that was a decade old. Utterly savage it was. Literally science accurate and as consistant as the sun rises. Outshot everything in the comps through the entire season.
XTX, john bowkett, airtech etc etc.
Any images?