RWS 54 suggestions on upgrades?

Thanks for the reference. I will look into him now. 

Does anyone know the accuracy I should be expecting or striving for with the 54? 

I just ordered a Pelletgage for it but did not us it in the past. I have already tested at least 15 different pellets so far. I have been using 5-shot groups and I will take the average of 6-5 shot groups to compare each brand/ model of pellet. At 25 yards, most pellets average in the 1/2" area but a few are in the low .4s" and one in the high .3s"

My, what I consider to be accurate, PCPs are shotting in mid to upper .1s" with the same tins of pellets. 

I have a solid bench, front and rear rests and have been shooting for accuracy in powder burners for many years. For scopes, I'm currently using a 32x Hawke on the 54 and 32x Muellers on the PCPs.