EDgun Edgun r3 tuning

A couple things I can think of. Are you sure your chrony is working right, checked it against other guns? Are you using same pellets previous owner recommends? I think the R3 has a maximum fill of 250 bar, have you tried that AND the 200 bar previous owner mentioned? Can't think of much else except reg setting. Have you spoken to previous owner about it?

Both my 22 cal R3 and R3M are 200 bar max fill presure.

My R3 30 cal is a 220 bar max fill presure.