H&N Field Target Trophy 11.42 gr. will probably be the most accurate.
H&N Baracuda 13.27 gr. are a bit heavier but might not be accurate.
Eun Jin are 23.7 gr are made for PCP guns but you can try it and see how the gun shoots it.
Anything heavier is PCP territory and you might as well throw the pellets.
If you go to the Yellow, you're going to have to register with
Steve, the owner before you post. (I'm a Yellow member)