I have purchased a Weihrauch HW100s .177 30J 9 (used) , I am filling it with the MK4 Hills Pump and I noticed after filling it up to 200 bars it drops very slightly. The manometer needle drops by about 1mm or 2mm within 2 or 3 days. I presume that it could be a slight leak. its bullseye accurate at 20m
Who is the accredited technicians/ specialists for Weihrauchs in Pretoria.