I'm using RWS Hobby pellets in a LP400. Before the lockdown I was shooting a 10 meter average of 93. Going to a match pellet might get me an extra point occasionally but in reality what costs me points is the nut behind the trigger. The critical issues to shooting well, assuming you have a pistol fit for the purpose (big,adjustable sights and reasonable trigger), is get some coaching or study the instructional resources available on the web to learn the basics such as position, grip and trigger control and then practice, practice, practice. Treat every card shot as if it was a match card and have them scored and analysed to identify what you are doing wrong and, just as importantly, doing right.