Best Ammo for an Air Arms TX200 MKIII HC in .22 Question.

Still trying to get organized to setup my New TX200 MKII HC. Just wanted to see what you all have chosen for pellets. I'll be using it for my HFT (Hunter Field Target) Backup to my TX200 MKIII .177 and back yard squirrel duty. Looking for a mid weight of around 14 gr. for a flatter trajectory but open to suggestions. SO far I have a tin of Crossmans and a tin of JSB Exacts both in the 14 gr range. Is there anything that has just outshot everything you've tried hands down?