RE: cva optima owners.
I would first try 100 grains 777 pellets with 250 gr shockwaves or hornady SST. I use the 250 shockwaves with 130 grains 777 pellets. You probably will get good accuracy as I did with 100 gr 777, but I increased to 130 to reduce the drop. This load has worked extremely well taking deer out to 200 yards without any problems.